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Wolverine recovers from his latest face-off.

Wolverine: I've survived five different wars in my lifetime.
Comedian: Yeah, that's really nothing to brag about when one of your main powers is not dying.
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A character is hard to kill, not because he doesn't get hurt, but because he has the ability to rapidly recover from serious damage. Although it depends on how fast he can heal and how much of a beating his body can take, a character with healing factor will bounce back from severe injuries that other beings can't, often with no scars or medical treatment.

Slightly more plausible than being Super Tough or Nigh Invulnerable, as it is a souped-up version of a power certain real life forms possess. When this ability is powerful enough (such as regenerating from being reduced to almost nothing), it actually becomes a form of Nigh-Invulnerability, however. Rarely will a character need to worry about infection, as a super immune system is most often packaged in, but they may need to worry about setting broken bones.

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Really powerful characters will be able to regenerate lost body parts. Ridiculously powerful regenerators may be able to recover From a Single Cell in a stain on the floor. Most often, loss of the head or brain injury is the only permanent damage, and even then they may come back just missing some memories or with an altered personality. Sometimes they appear to be dead for brief periods, but that's just the regeneration taking a while to deal with unusually severe damage.

On the downside, extreme regeneration often leads to the character getting targeted by The Worf Barrage so often that people go "Good Thing You Can Heal" because their Immortal Life Is Cheap. Also, regenerators are often more Made of Plasticine than the rest of the show's cast.

Note that if any real-world life form were able to recover this fast, they'd need a reserve of raw organic material to work from, and afterwards would be very hungry. The only way to justify always repairing the exact amount of flesh damaged is if it uses the actual damaged flesh to do it. Writers who acknowledge this often at least have their regenerator out of commission for some time, resting and feeding... or harvesting limbs. The effect may be compared to the rapid cell growth, differentiation and self-organization of human embryonic development if the writer is interested in any degree of scientific plausibility, but most don't bother with even that much Hand Wave; they just have the wounds close up and new tissues and organs appear. Depending on the strength of the regenerator, they may also be a practical Perpetual-Motion Monster, able to go for months or years without food and water since their healing factor keeps their body alive... though this sort of Immortality Hurts.

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Reptilian characters, taking a cue from real-world lizards that can shed and re-grow their tails, are likely to possess at least a minor form of this. note  Dragons, werewolves, and vampires sometimes have it as well. Other Shapeshifting characters may have this packaged in with their powers, though it's often described as returning to their "default" form rather than regenerating. Nanomachines are a common justification for an acquired power by otherwise human characters in a technological setting.

If regenerators have an Achilles' Heel, it's most often a nasty one: either suffocation, decapitation, poison, gas, fire, ice, or acid. Other times, the weakness is similar to Clone Degeneration; each re-growth results in Harmful Healing and increasingly damaged appendages/organs/shorter lifespan.

An in-universe, as opposed to plot-based, version of Hollywood Healing. Doing this to others is Healing Hands or using a Healing Potion.

If a character can be blown to bits and reform you could be looking at Pulling Themselves Together. If it happens offscreen, this may be the explanation for an Iron Butt Monkey. If this appears in a video game without an in-story explanation, it's Regenerating Health.

Also, it's more properly called an Accelerated Healing Factor; "Healing Factor" simply refers to how quickly you heal - normal humans, for instance, have their own healing factor: a normal one. This is in fact what it was originally called in comic books and elsewhere; "Healing Factor" emerged because it's, well, shorter.

Contrasts Wound That Will Not Heal. See Anti-Regeneration on ways to defeat these.


Examples:

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    Fan Works 
  • Child of the Storm has a number of characters with varying degrees of this owing to its heavily superhero influenced setting, including Wolverine, the Hulk and pretty much every Asgardian.
  • In the Jackie Chan Adventures fic Queen of All Oni, Jade has a healing factor as part of her new powerset, as well as the Horse Talisman from canon (see Western Animation below).
  • In the Fairy Tail fic Necrophobia, Marion Gremory has one that's ludicrous enough to give Wolverine a run for his money.
  • Vampires in Luminosity have this. Even if someone tears them apart, unless the flesh is actually kept separate, they will regroup and regenerate. There's only one surefire way to kill one. And Bella found a way around that.
  • In Fallout: Equestria - Pink Eyes, the lead character Puppysmiles is a Canterlot Ghoul. This Puppy can survive outrageous injuries. Her list so far includes being dismembered and devoured by a manticore, taking several antimateriel rifles to the chest, and being cut to ribbons by a Minigun barrage.
    • Taken Up to Eleven with Rampage in Fallout: Equestria - Project Horizons, whose Healing Factor makes her flat-out immortal. She has recovered from extensive Taint mutation, headshots,being beheaded, being blown up, leaping into a woodchipper and even being completely disintegrated. In the latter few cases, she regenerates as a filly, regaining her adult body in the course of several days. Her healing factor also renders her Immune to Drugs, meaning that if she wants to get drunk, she generally has to poison herself with, say, washing detergent beforehand. While making her a valuable asset to the team, it only serves to aggravate her; she's a Death Seeker, and would like little more than a way to get herself killed, permanently.
      • In the third volume of Horizons, Blackjack herself gains a healing factor of her own, courtesy of Magitek cybernetics. Even her mechanical parts regenerate, if supplied with - ingested - scrap metal.
    • In the original Fallout: Equestria, Littlepip gains a healing factor after suffering taint exposure. Like the Fallout example below, it regenerates her limbs when she's under the effects of advanced radiation poisoning. On one occasion, it allows her to regrow an entire leg.
  • In Origins, a Mass Effect/Star Wars/Borderlands/Halo Massive Multiplayer Crossover, Sarah has this likely due to a combination of Siren and Force powers, as do the Flood, having incorporated bacta into themselves. Some ships use digistruction to much the same effect.
  • Dread Raven combines this with The Undead to achieve Immortality in The Tainted Grimoire.
  • In Golden Dawn: Lost Sunrise, Tidepaw receives several wounds in a fight. However, when they ask the Clan's medicine cat for some herbs, the medicine cat points out their mysterious lack of wounds. Despite this, the scar on Tidepaw's forehead has never healed. In fact, it's still as fresh as it was when she first received it.
  • Lauren develops one in the Lost Girl fic Mad World. It eventually develops to the one point where she can take the wound of somebody else (curing them), and then heal herself. Though she's not as fond of this one.
    • Unfortunately this turns into a major Blessed with Suck when she's captured by a really sadistic Fae, as the fact that she heals from his torture just means he can torture her again.
  • Tails gets one when he is infected by Shroud parasites in Sonic X: Dark Chaos. At one point, he regenerates most of his internal organs after Tsali tears them out of his chest. This bites back hard during the final battle when he gets possessed by Dark Tails; the resulting mutation causes his body to start literally falling apart, which starts to heal him, which makes him fall apart again...
  • This part of the earthpony magic in The Immortal Game, aside of Super Strength. An alicorn, who have world-class earthpony magic can survive being impaled, or burned. Even with injuries that could kill regular pony hundred times over, an alicorn can recover in an instant.
    • Applejack is especially strong with this. Her earthpony magic is notably stronger than Luna. Combined with magic-enchanted armor and Super Strength, she's a borderline Nigh Invulnerable.
  • In the Pony POV Series, Alicorns have the ability to regenerate very rapidly, having The Power of Creation. Draconequui play with this, as they erase damage instead of healing from it.
    • The Element of Generosity has a version of this trope, as Rarity's healed to full health whenever the Elements are used. She eventually figures out how to split this effect between her and her friends.
    • In the Dark World arc, the Dark World Mane Six have this ability thanks to their Elements of Chaos acting as a Soul Jar. So long as it's not destroyed, they're rapidly heal from any damage taken. This makes Rarity's Healing Hands power more practical, as to do she takes a team mate's injury into herself.
  • The Bridge:
    • Alicorns have this, with Princess Luna only needing a few hours to recover from a black eye and broken wing. Luna and Celestia heal even faster when near each other.
    • As King Sombra runs on The Power of Hate, the angrier and hateful he gets, the faster he heals. He'll still die if he's blown to bits.
    • All in Godzilla's family have this ability, though each injury leaves invisible scars that turn visible when they are weakened. His cousin Raiga's is a bit slower, but can be sped up by absorbing electricity. Dark magic also disrupts the healing factor.
    • The Ghidorah species all have this. Grand King Ghidorah once grew back a head and shrugged off getting a nasty looking gash. Monster X healed from multiple stab wounds overnight, and Kaizer Ghidorah can speed his healing up and recover from several broken bones by feeding on someone. After Aria Blaze steals some of Kaizer Ghidorah's energy, she gains this ability.
    • The Guardian Beasts like Gamera and Anguirus can slowly heal by resting and using up their stored mana.
    • The Gyaos and Gaira both only need about a day to recover from broken bones and lost limbs.
    • Gigan has one, but since he's a cyborg, it only benefits his organic parts and he needs someone to fix his robotic parts.
    • Enjin can heal from pretty much anything, even a broken neck, in a matter of seconds or minutes, then become immune to whatever damaged him. Even his mask repairs itself when damaged. However, it only works if he's touching the ground, so if he's knocked into the air, he can be killed.
  • In Fate Parallel Fantasia, Servants can recover from any injury that doesn't destroy their head or heart, provided they have enough of a supply of magical energy to draw on. This makes the Servants corrupted by False Avenger a significant threat, since unlike the heroic Servants they can draw unlimited energy from the Grail.
  • Project Riribirth: In the backstory, Riri fights against a large monster who has a very powerful Healing Factor, to the extent that Riri destroys its hand and it almost immediately grows a new one. The fight goes... poorly for Riri.
  • The Flash (2014)/Supergirl crossover Call Me Kara provides several examples:
    • Both Kara and Barry have this power naturally, though it takes a backseat to their more spectacular powers. Nyssa points out how valuable of an ability this is and convinces Barry to train this ability to heal from injuries in seconds as opposed to hours, which Kara also learns to replicate (albeit on a lesser scale)
    • Unfortunately, Doomsday also has this ability, and its immortality is one of reasons Barry trains to master the Infinite Mass Punch, as nothing else would be able to kill it.
  • Downplayed in Yugioh EQG. Sunset Shimmer's ace monster Solar Flare Phoenix has the ability to double her life points when it is special summoned to the field, as long as her life points are at 2000 or lower. Because it is a Pendulum monster it can be summoned as long as Sunset has the right scale and keep her life points high. Her Synchro monster Solar Phoenix Rebirth has the ability to increase her life points by 1000 once each turn.

    Films — Animated 
  • Heavy Metal: In one segment, the protagonist Den encounters the wimpy-looking Sissy Villain Ard as head of a band of monstrous humanoids, and soon learns how he got the job- when Den blasts him multiple times with an automatic weapon, Ard isn't even phased and the bullet-wounds heal up and disappear almost instantly.

    Films — Live-Action 
  • The people infected by the alien parasites in Alien Raiders can regenerate most body parts. When the heroes lose their usual method of telling who's infected, they resort to cutting off the pinkie fingers of every potential host and waiting to see if it grows back.
  • Brandon Lee's character in The Crow seemed to possess this ability. Right to the point of making a very bad religious joke in between successive on-target shotgun blasts. Too bad the actor wasn't so endowed.
  • The titular character's healing factor in Deadpool gets used a lot in the film going from being shot in the hand, surviving a car crash without any long term injuries, regrowing his hand in less than a day after cutting it off, and even waking up after being impaled by Ajax on a piece of rebar to trap him under the burning Weapon X building.
  • In End of Days, Satan quickly heals his host's wounds after Jericho shoots him. However, near the end he suffers so much damage that he doesn't even bother repairing it anymore and starts looking for a new body because he's running out of time to complete his plan.
  • This ability is given as a reason for Jason Voorhees' longevity in the tenth Friday the 13th movie, Jason X. Because he can heal any wounds, the authorities have given up on trying to execute him, and opt to cryogenically freeze him instead (until they get the bright idea to use him in scientific experiments).
  • The Neo-Vipers from G.I. Joe: The Rise of Cobra have one thanks to the nanomites.
  • In Godzilla 2000, the genetic origin of this (dubbed "Organizer G-1") is explicitly described as the ultimate source (in combination with its sheer mass) of Godzilla's apparent immunity to attacks. It's so powerful, in fact, that the invading aliens utilize it in order to give themselves physical form (though the plan backfires and causes them to revert to the powerful but nonsentient kaiju "Orga").
  • The Hellboy films:
  • Immortals from Highlander have fast healing, recovering from non-fatal injuries just as fast as deadly ones. The only injuries they do not heal from are ones to the neck - this is why they can only be killed by cutting their heads off (according to Highlander The Raven, severing their spine by any other means also works and they can't regenerate limbs).
  • Kaulder of The Last Witch Hunter has this in addition to his immortality. Lesser wounds heal in seconds and broken bones need less than a minute to mend themselves.
  • In The League of Extraordinary Gentlemen, Mina and Dorian actually wonder if they can be killed. They both heal from their wounds in seconds during their fight, prompting Dorian to note, "We'll be at this all day." Their healing factor is based on different abilities, though. In Mina's case, it's because she's been bitten by Dracula and is now a vampire. In Dorian's, it's because his portrait takes all his age and damage for him.
  • John Oldman in The Man from Earth is unsure whether he has a full-fledged healing factor, (for instance, if you shot him, would the wound heal in front of your eyes, or would he drop dead?), and has gone out of his way to avoid testing it. All he knows is that he doesn't age (he looks 35 despite claiming to be 14,000 years old) or scar.
  • Jeebs from Men in Black has an incredibly effective healing factor as his alien ability. Every scene with Jeebs involves him getting his head shot off, only to have it grow back in the space of seconds. The RPG specified that he had a limited number of several vital organs, including his head. The animated series said his species didn't need to breathe oxygen, but needed it to regenerate. The healing factor didn't apply to all his physiology. After shooting him, K threatens to shoot him again in a place "where it don't grow back." By the sequel, his head looks misshapen from the repeated shootings by J. Word of God is that his organs don't grow back exactly as before.
  • Spawn: Spawn got the ability to heal wounds as part of his deal with Hell. He notes this with satisfaction when Jessica pumps him full of lead.
    Spawn: Damn...
  • In Star Trek Into Darkness, Harrison's blood allows his cells to heal at an astonishing rate, which he uses to heal a sick girl in the beginning in exchange for a favor. Later, Bones revives a dead tribble with it, and then uses it to save Kirk. Supposedly, this is something that was invented in The '70s.
  • Terminator
    • The T-1000 from Terminator 2: Judgment Day is a metallic Blob Monster, meaning it can not only shapeshift, but almost instantly regenerate itself from gunshot wounds. It's too bad that a lot of scenes from the end were cut, and are thus not canon. The protagonists did enough damage over the course of the movie, specifically highlighting the freeze-and-shoot moment, that the T-1000 isn't able to completely maintain his form anymore. Moments include grabbing a handrail, and having his fingers stick and assume the color of the warning paint, and while he walks his feet tends to melt. This is also what tips John Conner off that his mom is the T-1000 in disguise. In addition, it has its limits, as it gets blown up with a grenade from the inside, and can't repair its mangled form because of the pressurized impact and heat. That and its fall into molten steel.
    • T-3000 from Terminator Genisys also insta-heals from bullet wounds.
  • The title character of the Tomie series of J-horror films has this ability to the extent that every single individual piece of her that is cut off will eventually become a new Tomie. This is justified, at least in the manga it was based on, by Tomie being radiotrophic, feeding on background radiation in the air & somehow converting it into mass.
  • Vampires and Lycans all have an advanced form of this in the Underworld series. While Silver rounds can kill Lycans, they can use their healing factor to push the rounds out and heal the damage. Vampires eventually get around this by using liquid rounds that release Silver Nitrate into the bloodstream, preventing the healing factor from working effectively. Hybrids have an even more advanced case of this.
  • The Djinn in Wishmaster have a ramped-up healing factor as part of their Complete Immortality. They can actually be hurt (as the Djinn in the first film demonstrates by blowing its own brains out, which he concedes hurt a lot), but the damage just repairs itself instantly.
  • One of the upsides of being a werewolf in The Wolfman (2010).
  • X-Men Film Series
    • Wolverine. And how. By the end of X-Men: The Last Stand his flesh is being torn from his body at an alarming rate only to regenerate just as quickly. (This was explained in the novelization as being accelerated and enhanced even further than normal by the energy Jean was putting out.) He also survives a nuclear bomb in the opening of The Wolverine and his body is left a charred and scalded mess from the affair. However, it seems like the film Wolverine's healing factor is not as absurd as the comic book Wolverine's healing factor, considering that decapitation is treated as a viable option in his solo films. X-Men: Days of Future Past also presents drowning as an effective method, though he was fished out before it could take.
    • In The Wolverine, he loses this, which is suppressed by the Yashida Corporation, through technological means. At least until he figures out how they did it and rectifies the problem.
    • Lady Deathstrike in X2: X-Men United, since it's necessary to get adamantium.
    • In X-Men: The Last Stand, Wolverine fights a mutant who can regrow limbs instantly — but is not immune to a Groin Attack.
    • Victor Creed in X-Men Origins: Wolverine. Although if Stryker is to be believed, it is not as effective as Logan's (which is why he can't undergo adamantium augmentation). It does allow him to live an unnaturally long life, however.
    • In X-Men: Apocalypse, the villain Apocalypse transfers his essence into an ancient Egyptian mutant who could regenerate from any wound to acquire this power for himself.
  • In Warlock, witch hunter Redferne stabs the Warlock to kill him, but finds that even the incomplete Grimoire gives the Warlock the power to recover from the wound almost immediately.
  • Wonder Woman (2017): Diana's arm gets grazed by a bullet. An Amazon doctor puts a bandage on it and then treats some more seriously injured Amazons. A few minutes or hours later, the doctor returns and is shocked to find the wound is already gone, a hint to Diana's divine heritage.

    Gamebooks 
  • In the Lone Wolf gamebook series, the various Healing disciplines. Most of the time they are just granting Gradual Regeneration, but there are instances when they can explicitly save the protagonist's life from grievous injuries, poisoning, or diseases. Especially with Curing by the rank of Archmaster, or the Grandmaster discipline of Deliverance, which can heal 20 Endurance Points even in the middle of a fight if the total falls too low, though only once per adventure.

    Live-Action TV 
  • Buffyverse:
    • Buffy has a lesser healing factor as part of her Slayer powers. She can't regenerate injuries in front of our eyes, but she does recover from serious injury much faster than a normal human (at least if she also gets medical assistance).
    • Vampires also have this healing factor, though it may not be as strong as Buffy's. Spike was stuck in a wheelchair for several episodes, and Drusilla was heavily weakened by an attack which required a ritual to heal. In some ways it can be stronger than Buffy's, as vampires are clinically dead, they don't have to worry about things like blood loss.
    • Spike recovered at some point before he actually got out of the wheelchair; in one scene, he reveals he'd been faking it for an unspecified amount of time. Angel has been gutted and run through an unspecified number of times, particularly in his spinoff show. Illyria also threw him through two windows several stories off the ground.
    • The Mayor's invulnerability manifests as this. He tests it by allowing someone to stick a sword through his head; the two halves sew themselves back together almost instantly.
  • The Collector: Collectors quickly recover from any wound, with Hellfire spewing out of it in the process. A client also exhibited it (minus the flames) with fatal wounds. Because of the Devil's obligation to clients, they are protected from death for the duration of their deal, one way or another.
  • Appears to be the only sort of power ascribed to grim reapers in Dead Like Me, beyond the ability to yoink souls out of bodies. One example is when George accidentally runs her hand through a paper shredder, losing a finger in the process. She picks it out of the basket, holds it back in place for a few seconds, then goes and washes the blood off her hands.
  • Doctor Who:
    • Adric has this ability, thanks to his species' capacity for incredibly rapid adaptation. It only gets mentioned in two of his stories, though.
      • The Info-Text for "State of Decay" uses this to poke fun at a continuity error regarding a mysteriously disappearing patch and rip in Adric's trousers where he skinned his knee in "Full Circle", saying that apparently "Alzarian trousers heal as fast as their owners."
    • In "The Christmas Invasion", the Doctor is shown to be able to quickly regrow severed limbs for up to 24 hours after regenerating, using leftover regeneration energy. In "Let's Kill Hitler", Melody, who has just regenerated is shot with many bullets, but regeneration energy prevents any damage.
  • Revealed as an ability that Pilot's race has in a scary early episode of Farscape. The crew of Moya, minus Crichton and Aeryn, cut off one of Pilot's arms to trade for maps to their home worlds. Predictably, they get double-crossed so they REALLY mutilated Pilot for no reason.
  • In The Flash (2014), all speedsters have this ability, granted by their Super Speed. In the pilot, Barry breaks his arm, which heals in 3 hours. Presumably, the bone still has to be set as soon as possible to prevent it from healing improperly. In an Arrow crossover episode, Oliver intentionally shoots Barry with two arrows to teach him to be aware of his surroundings. When Barry complains, Oliver reveals that he knew about his healing ability (which doesn't prevent it from hurting like hell).
  • Heroes:
    • Claire Bennet. She exhibits the power of rapid cell regeneration, a trait that allows her to recover from almost any injury in a matter of seconds. She also feels relatively little pain from even serious injuries, including burns and compound fractures, although she did grimace when her hand was damaged while retrieving a class ring from a running garbage disposal. She has not yet reached a limitation in her powers. Along with the injuries stated above, she suffered an injury where her neck was broken and turned around 180 degrees. However, Claire cannot heal an injury if a foreign object is obstructing the wound. This is true of other characters with healing factors, who can still heal incorrectly, incompletely or not at all if certain conditions are not met, just like normal humans. For example, in the first episode, the bones of Claire's ribs were sticking out at one point. After a comment from Zach brought this to her attention, Claire had to move them around a bit before they would heal properly.
    • Adam Monroe/Kensei has the same power and is immortal.
    • Peter Petrelli has the same power via absorbing it from Claire ( until Arthur remove all his power). Also in Season 3, Sylar, but in a less family-friendly fashion than Peter.
  • In Highlander, immortals don't get sick and beheading is the only way to kill them. Any injury that doesn't happen to the neck or head will heal within minutes, and mortal wounds result in a short-term "death" where their body will shut down and appear dead while it repairs the damage. Once again, in a couple of minutes they're good to go. The most notable exception to their healing power is that lost limbs can't be regrown... a recurring villain whose hand is cut off in a duel in his first episode is still missing that hand in subsequent episodes.
    • There was also a recurring villain whose first duel with Duncan centuries ago resulted in his throat being cut. For some reason, it healed improperly, and he has since been incapable of singing opera. He really hates Mac for that.
  • Jekyll and Hyde (2015) gives Hyde the ability to heal from injuries at an accelerated rate.
  • The rebuilt Michael Wiseman's new body in Now and Again has a nanite-based healing factor. While it's not as extreme as in some of the other examples on this page, it's much faster than a normal human.
  • The Outer Limits (1995):
    • In "The New Breed", nanodevices injected into the body provide the test subject with this ability. He demonstrates it by burning his hand, which is repaired within seconds.
    • In "Last Supper", an immortal woman who goes by the names "Laura" and "Jade" reveals that she was actually born in Medieval Spain before her village was ravaged by the Black Death. She was the only one to survive, but hasn't aged or gotten sick since, and all her wounds recover soon enough. A government scientist takes samples of her blood to replicate the effect, but vastly underestimates its potency when he injects himself with it and de-ages into a puddle of cells.
  • Similar to the comic, the titular character in Painkiller Jane can recover from pretty much any injury that leaves her body largely intact. In the pilot, it takes her no more than 30 minutes to recover from Destination Defenestration. The "painkiller" is a Non-Indicative Name, as she goes through extreme pain from these injuries that happen with disturbing frequency. In one episode, she is trying to convince a neuro who can make people see things that he is the one being manipulated. She shoots her own hand and shows it to him as the wound closes in a matter of seconds to prove that none of it is real. However, one "Groundhog Day" Loop episode has her die by tripping a claymore mine and following the Chunky Salsa Rule. The loop resets, so the death doesn't stick. Later, she also finds out that there are others like her. Interesting, they reveal that neither they nor she are The Ageless, and their (completely healthy) bodies simply shut down when the time comes.
  • The Wraith in Stargate Atlantis. Their healing factor is directly dependent on how recently and how much they fed. One notable Wraith is found who has been feeding on both humans and other Wraith for 10,000 years. No matter how much lead is pumped into him, he keeps going. Only a drone strike finally brings him down (by destroying his body).
  • Supernatural
    • The Leviathans have this as part of their skill-set. Edgar recovered from having a car crush him, and Borax, while capable of hurting them, only causes temporary damage. When they have their heads removed, it reattaches itself.
    • Angels also regenerate from damage quite quickly, the speed relative to how bad the injuries are. In Castiel's first appearance, he is shot with dozens of bullets, and blood is visible in a few places on his coat, but it's minimal and he displays no ill effects, implying that the bullets did pierce the vessel's skin but the wounds healed within seconds. If an angel is injured by a weapon that actually damages their true form, recovery will take longer, but generally occurs within a couple of days, if not hours.
    • Demons are a variation. As long as a demon is possessing a host body, injuries that would be horrific or fatal (such as stab wounds with conventional weapons, falling several stories off of a building, etc.) heal quickly and don't hamper the demon at all. However, it seems the demon is only healing itself, as soon as the demon vacates the body, the wounds come back, often killing the host. This is in contrast to angels, who heal the actual human body they're possessing and such healing is permanent.
  • Teen Wolf: All the wolves have it. Sometimes they even come back from apparent death.
  • In Terminator: The Sarah Connor Chronicles, Robot Girl Cameron's epidermal layer heals unusually quickly, to the point that a gaping, deep wound that had to be stapled closed healed to the point that is just looks like a recently patched-up cut the next day.
  • Captain Jack Harkness of Torchwood comes Back from the Dead whenever he encounters lethal damage. When he does, the damage is healed, regardless of whether it was mundanely or supernaturally inflicted.
    • Taken to a disturbing extreme in the series two finale, where he is trapped in a continual death-resurrection cycle for almost 1900 years after being Buried Alive.
    • Taken to yet another disturbing extreme in the Children of Earth miniseries, where he has a bomb implanted in his stomach. He regenerates from a few limbs and part of a head to a skeleton to his normal self over the course of the day... and starts regaining consciousness and screaming when his skin has yet to come back. The room he's locked up in is promptly filled with concrete, and he's rescued when the team breaks the concrete block by dropping it into a quarry.
    • This regenerating thing of his is not because of a natural, biological healing factor. Poor sod became a universal constant in the parent series when Rose fixed the past a bit sloppily in her god mode. This peculiar being of his makes him too weird for the time sensitive Doctor.
    • He loses his healing factor in Miracle Day, and after the Miracle (which stops everyone on Earth from dying, no matter how badly they're injured) there is speculation that he many now be the only person on the planet who can die. Once "the Blessing" is given, which is some of his blood from when he was immortal, he regains it, along with associate Rex Matheson. Word of God is that, while his Healing Factor is gone, his Resurrective Immortality remains.
    • The Torchwood: Web of Lies mobile game reveals that Jack's body is full of bullets and shrapnel from every time he was injured or killed since he was first resurrected. Apparently, his body doesn't push all that stuff out, but simply regrows around it. None of it appears to bother him in the least. Most of the metal pieces come out at the end of the game, though, thanks to an MRI magnet.
  • The vampires and werewolves of The Vampire Diaries. Vampires heal particularly fast if they drink some blood.
  • The X-Files: Several monsters of the week have this.
    • "Leonard Betts" played with the healing factor's similarity to the rapid cell growth of cancers; a man who could regrow his whole body almost at will showed up in lab reports as having a wide variety of cancers, and he needed to eat tumors to survive.
    • "Fire" featured a pyrokinetc villain who could control fire. He survived fifth and sixth-degree burns over his entire body and his tissues started to regenerate rapidly.
    • In "Young at Heart", a Mad Scientist experimented with cell growth and salamanders' regenerative power. John Barnett was given a horrifying salamander hand in the process.

    Myths & Religion 
  • Classical Mythology: The Lernaean Hydra, of Heracles/Hercules fame, was so difficult to kill because for each head the hero would cut off, two would grow in its place. The fact that its blood was also a deadly poison didn't help either. Only when his nephew Iolaos started to cauterize the stumps with his torch could Heracles finally kill the monster; this may be the (or at least one) source for the idea that fire is bad for regenerators.
  • The Lambton Worm was a serpent or dragon in English folklore that could heal any injury it took, to the point that it can eventually rejoin segments of its body that have been hacked off. The only way to defeat it was for the local lord to wear a suit of armour covered in spearheads fight in a river. Where the worm tried to wrap around the lord, the blades on his armor would cut it apart and the running river would wash the individual segments away so the worm couldn't reconnect itself.
  • Prometheus had his liver torn out every day, and grown back by the next. Over and over again, for centuries.
  • The Greek gods have this kind of immortality, which includes not aging. According to most writers, they can't die from anything. To add to this, the myths say that Kronos is still alive despite being cut up into tiny pieces and scattered across Eternity. Further, Kronos did the same to HIS father who is also still alive despite that. In fact, Chiron, one of the few GOOD centaurs, ends up needing to have is immortality taken from him somehow since the hydra venom in his body couldn't kill him and just continued giving him horrible, mind-searing pain.

    Pro Wrestling 
  • Dino Kang Jr. in Kaiju Big Battel. Given a few years, he can regrow limbs.
  • John Cena has actual, no-Kayfabe, near-superhuman healing abilities. After his first major injury and repair surgery (in October 2007) he was supposed to be out for at least six months before he could wrestle again. Guess who showed up in the last spot of the Royal Rumble next January? And won? Yeah, those numbers don't add up, but it happened, and that's not the only time.

    Toys 
  • From BIONICLE, Kalmah could regrow his tentacle (or at least did so in a mini-movie which is actually a vision that another character sees). Unlike him, Nocturn could regrow his partially mechanical arm but not the organic tentacle at the end of it. So he attached a gun to it instead.

    Visual Novels 
  • The primary effect of the "Cure virus" in Ever17 is to give the infected party a healing factor that makes it impossible for them to be killed.
  • Shirou has this in Fate/stay night, spurring his famous "people (should) die when they're killed" line when he chooses to abandon it.
    • All of the Servants have levels of superhuman regeneration as well. The speed of regeneration depends upon the Hero summoned as well as the amount of mana available (Archer takes several days to regenerate from being nearly cut in half),even lost limbs will eventually regenerate. To fatally wound a Servant, you have to damage their spiritual core (brain and heart) or destroy their bodies entirely.
  • Subverted in Chaos;Head. Gigalomaniacs can alter reality, but they can't use their powers to heal. This is explained as an inability to block off person's sense of pain, which in turn disallows their delusions from taking effect. This is eventually played straight with Takumi when he accepted his existence as an imaginary being, which allowed a complete control over his own form.
  • Consuming demon flesh or the heart of a person that has eaten demon flesh gives you regenerative powers in Demonheart. Demonspawn, the offspring of a human woman and a demon have one as well, as part of their Complete Immortality.
  • The dragon and both the dragonslayer and his armor heal very quickly in Dra Koi, especially during the climactic fight at the end. The hero can see the armor stitching or unmelting itself before his very eyes.
  • Arcueid Brunestud from Tsukihime has this, known as the "Curse of Restoration", a spell that rewinds time on her body to undo any damage done to it. Her most impressive feat was, at the beginning of the story, recovering from being cut into seventeen pieces. Technically, however, she did not "regenerate" because Shiki's Mystic Eyes of Death Perception bypass all forms of regeneration to render the target Deader Than Dead. Arcueid got around this by creating an entirely new body from scratch in the instants before she died... her old body was killed, but her soul jumped into the new one. It cost her a lot of energy to do this, though, and she stays weakened for much of the story as she slowly recovers, forced to rely on Shiki to help her face foes that she would normally crush in an instant.

    Web Animation 
  • Xin's titular protagonist knows a technique wherein he uses Qi to quickly mend broken bones. Subverted in that this technique is only a temporary solution, and he needs to have his bones properly mended after fights.
  • Death Battle factors this trope in determining a victor, but in this case it's determining how powerful it is to prevent them from dying.
    • This is a major factor in the wins for Deathstroke vs. Deadpool, Dante vs. Bayonetta, and Hulk vs. Doomsday. The first and the last are especially notable because Deadpool and Doomsday's healing factors are insanely more powerful than Deathstroke and Hulk's (Deadpool is able to reattach his arm and leg twice after he got them mixed up while Doomsday repaired his completely and utterly ruptured arm after Worldbreaker Hulk crushed it. Both would go on to gut their opponents and take their heads off), and while Bayonetta's feats are admirably greater than Dante she has no such ability to recover from injuries where as Dante can easily shake off being stabbed by a sword.
    • This is a major factor in the Deadpool vs. Pinkie Pie battle as the former has an insane healing factor and the latter runs on Toon Physics, thus neither can really die.
    • However, this does not help Wolverine against Raiden, since Raiden had the means to cut through Wolvie's Adamantium skeleton and the means to stop his healing factor by severing the head off.
    • It also does not help Vergil against Sephiroth, since Sephiroth had Supernova as a means to overtax Vergil's extremely powerful healing factor.
  • DSBT InsaniT: Cell is capable of regeneration if he is blown apart, but not when he's shattered!
  • RWBY: Theoretically, every Huntsman or Huntress trained to use their aura can use it to regenerate wounds extremely quickly, though aura is also used to shield against attacks so this is used rarely. In Volume `1, Jaune uses it to heal up a minor gash on his cheek from a branch whacking him. In Volume 5, after Weiss is impaled through the back by Cinder, Jaune transfers his own aura into her with his Semblance, allowing her to heal herself; within two episodes, a girl who before was bleeding to death is not only back on her own feet but has summoned the Queen Lancer, floored The Brute who previously overpowered Qrow and can hold her own against Emerald and Mercury.

    Web Comics 
  • Schlock Mercenary:
    • Schlock, as an amorphous life form, can regenerate from any amount of mass remaining, but as his memories are distributed throughout his body, he loses his mind if he takes enough damage. His eyes are actually separate lifeforms, that grow on trees on his homeworld. Unusually for this trope he needs to regenerate from what's left of his own mass. If enough of that is lost, he explicitly needs a large outside source of organic material.
    • Additionally, medical technology of the 23rd century can regrow your body from the head down in less time than it takes you to naturally heal a paper cut.
    • Laz'r'us grade nanites appear to be able to provide this, as witnessed on the two occasions they're called on (for Kevin and General Xinchub).
  • Vinnie, the werewolf soldier from Skins. When he's fighting another monster in prison during a flashback scene, he has a broken nose, black eye and his arm so badly broken that the bone is protruding from the skin. But after he shifts to werewolf form and back again he appears all healed up and actually looks quite handsome.
  • Nightmare Factory:
    • Emai is a body manipulator, which is exactly what it sounds like. This includes healing herself and others' injuries, however, she cannot control two bodies at the same time.
    • Kreyul's boba teas are also this; they are laced with healing herbs, which help him keep from coughing up blood whenever he thinks about being violent.
  • Sluggy Freelance:
    • Aylee the alien has a powerful healing factor in some of her forms, at least the "larval" one she starts out in. Even years in, she still hasn't got the memo that Earthling limbs do not grow back.
    • Though there are different types, at least some vampires have a Healing Factor that makes them unkillable other than by the proper means, eg. stake through the heart and garlic in the mouth. If you physically damage such a vampire's body really badly (eating their brains or cutting them in half isn't enough), they'll need special means to recover, but it's still possible.
    • The mysterious brainwashed assassin Oasis, who keeps coming back from the dead, has an incredible normal-human healing factor according to this strip. The suspiciously similar (but opposite) Kusari also recovers from a broken leg within hours. Or maybe it just looks like that because there's more than one of her.
    • While possessing Gwynn's body, the demon K'Z'K basically ignores any injury and pulls himself back together again. At one point Bun-bun ran him through a meat grinder and turned him into burgers. He was up and rampaging again by the next strip.
    • Medical nanites (nano-robots) inserted into the body are invented in the course of the story that can grant a healing factor.
      • Dr. Crabtree, who was involved with their initial creation, eventually has so many in her body that she becomes a kind of nano-cyborg and can somewhat unreliably recover from just about anything... except for an EMP.
      • Medical nanites are a common feature in the alternative future dystopia 4U City. Though they wear out and you always need a new batch, they enable people to recover quickly from injuries, but every citizen also has a 'snapshot' taken of themselves clear down the the firing of every neuron in the brain that can be used to regenerate them with nanites. Too much damage causes them to revert to the state they were in when their snapshot was taken.
    • Lodoze, a parody of Lobo in "GOFOTRON Champion of the Cosmos", heals any wounds and isn't even slowed down by anything less than Your Head Asplode. Still, he's presumed dead after his whole universe started a cycle of exploding and imploding.
    • Demons of the Dimension of Pain must have a Healing Factor considering what kind of injuries they sometimes inflict on each other for fun and subsequently ignore.
  • One of the Super Soldier implants in S.S.D.D has this effect [1]
  • The protagonist in Artificial Time XS, raocow's webcomic is so incredibly stupid that she has the ability to forget and thus, heal every and all wounds. At first, she does feel pain and even passes out, but later on, as she becomes more insane, she doesn't even realize that she's getting injured and not only survives through, say, having her neck snapped, her head blasted off or her entire body being cut to pieces, but doesn't even react to it, happily and non-stop talking while she instantly regenerates from even the most grievous injuries.
  • Damien from El Goonish Shive is expressly stated to have this. Grace and her "brothers" as a shapeshifters presumably has this as well and by extension all Seyunolu and Uryuom have this to a certain extent.
  • Wayward Sons: All Ulympeans and Tytans got this along with their Personality Powers. Beheading is the only way to kill them now.
  • One antagonist, Gwenovere, from Power Of Ether can regenerate form injuries, which is convenient as she is a masochist.
  • In Elijah And Azuu, it's common for both angels and demons to recover from grievous injuries, but one storyline firmly established that Azuu could easily regrow his arm after having it hacked off by a sword that specifically halts a demon's healing factor. His mom was injured by the same sword in an earlier story arc, and she had to consume several souls in order to recover.
  • In Jack those who "missed their chance to die" are apparently this, unfortunately they usually don't realize this. And it's implied to not be a good thing.
  • Webcomic artist Tiffany Ross loves this one so much, two unrelated series have variations of it:
    • The Cyantian Chronicles has it as one of the traits of genetic elites including Alpha and his son, Syrys, Shean Tibal and his bad-boy son, Rama, as well as several cubs (at this point only shown with Rama's son, Vin). Also it only works if the subject is moving, as elites were originally intended as pit fighters.
    • Alien Dice gives us Lexx, who has been injected with repair nanites by the ADC so he can play their game and make the corporation wealthy.
  • Justin of Wapsi Square was revealed to have this power. Several of his ex-girlfriends took advantage of this for their own amusement.
  • In Moon Crest 24, Moon Crests provide this ability.
  • In Bob and George, the Yellow Demon.
  • The battle monsters in But I'm a Cat Person can heal completely from almost any injury, although not so well that food and proper care don't help. Having done this for a couple thousand years now, they can be pretty blasé about the gory details.
  • In Nimona, Nimona gets an arrow wound in her leg that heals quite fast indeed. It's a shapeshifter thing.
    • Turns out she could have healed herself much faster, but held off to mislead Ballister as to the extent of her powers. When she wants to, she can grow an entire dragon body from a few blood cells. In fact, it's ultimately explained that whenever she shape-shifts (which she does casually) her entire body dies and is rebuilt instantly from scratch.
  • In The Order of the Stick, Tarquin possesses a Ring of Regeneration.
  • Rezz & Co Bounty Hunters: Sebastian Krezznar is an alien seemingly capable of regenerating any wound. At the same time, he has a lot of bad luck and a knack for getting himself mortally wounded.
  • In When She Was Bad, Max has a healing factor that is tied to his role as chosen one Amber's bodyguard. It is very powerful in the beginning, when she is inexperienced and vulnerable, but decreases over time as Amber becomes stronger and less reliant on him.
  • Zukahnaut's Hrothgar the Faceless is an Einherjar (a dead viking chosen by Odin to spend his afterlife in a warrior's paradise). He recovers from any injury as though he was still fighting in Valhalla.
  • Tower of God:
    • When Juy Viole Grace gets seriously injured a red lobster-like being pops out of his back and he gets healed almost instantly.
    • Ja Wangnan seems like just an ordinary human who can barely keep up with others of his level, but people start taking notice when he gets his heart pierced, with a hand, and not only survives but is up and moving pretty quickly afterwards.
  • The Far Side Of Utopia: There are several characters — an unnamed individual that keeps popping up refers to himself as immortal and has visible fairly instantly regenerated damage (though not his clothes) from an explosion. Mium also appears to regenerate from damage, if not instantly - including from being shot in the head.
  • In Strong Female Protagonist, an insanely powerful Healing Factor is biodynamic superhero Feral's main anomaly. Getting riddled by automatic gunfire will only result in her vomiting out the bullets a few seconds later, and even a sword embedded in her brain does little more than slur her speech and mess up her coordination for a bit. Spurred on by protagonist Alison quitting classic superheroism, she ultimately finds a way to use her powers to save more lives than mere crimefighting ever could: becoming an effectively inexhaustible source for universal donor organs. She is voluntarily Strapped to an Operating Table - being Immune to Drugs, fully conscious the entire time - and her organs, skin and blood are harvested as fast as she can regenerate them.
  • Seisha Dree in Harbourmaster was given genetic treatment to make her immune to Yogzarthu bioweapons. The modifications were more powerful than expected, though—she now regenerates from anything, so long as she has enough backup protein to work with, and as a result barely ages, if at all.
  • Undying Happiness is about a girl who moves in with her Internet boyfriend, only to discover that he has uncanny powers of regeneration... to the point where he's able to regenerate from nothing but a skeleton after his house accidentally burns down.
  • Imps in Imp can regrow limbs in hours.
  • Wonder Weenies has Frank, who can survive entire chunks of his head being removed and rapidly heals on account of now being an anthropomorphic hot dog.

    Web Original 
  • In The Magnus Archives a character starts mysteriously losing body parts. They don't grow back, but the wounds they leave behind heal instantly.
  • Global Guardians PBEM Universe: This was a very common power.
    • The all-time champion was probably Splatterman, so-called because he seemed to end up as chunky salsa every time he ended up in combat. Being aware of how quickly he healed, Splatterman would often put himself in position to have this happen, because he knew it wouldn't really slow him down. Leap off the top of a building? Sure. Jump through a wood-chipper? Yep. Swallow the live hand-grenade? You bet. And like a Timex, he took a licking and kept on ticking.
    • The villainous Nematode not only regrew parts that were cut off of him, but the parts would regrow into whole beings as well. Cut off an arm, and suddenly fight two Nematodes.
  • This is so common in the Whateley Universe that there is a Regen scale describing how fast any mutant recovers from injury. Carmilla once was decapitated: her head grew back while the assailant stared in shock. Tennyo had her entire arm blasted off by a supervillain: she spun around and had completely regrown her arm by the time she got to him, intent on massive retaliation. Other characters have this to a lesser degree, including Generator and Peril.
    • Note that regeneration in the WU can end up as Blessed with Suck in a number of ways, and the potential for problems rises with the strength of the healing (though the specific form of regeneration has an impact as well):
      • While Wildman's body survives the No-Holds-Barred Beatdown Kodiak gave him in their arena match, the result of Wyatt putting his fist through Tony's skull was that his brain regenerated as a blank slate. Wyatt's guilt over this is a significant factor in some of his later actions, but the isolation it caused due to other students being afraid of him was also the lever Freya used to turn Kodiak into her personal enforcer.
      • Different regenerators react differently to drugs and alcohol: some aren't affected, or are only affected the first time they are exposed to it; some burn through it very fast, getting the full impact, withdrawal, and recovery in a matter of hours or minutes; and some others, such as Circuit Breaker, have unpredictable results completely different from normal reactions.
      • For regen 3 and higher, their blood is a hazardous material, and blood transfusions from such regenerators often end up turning the recipient into a clone of the donor, often with a Mind Wipe as a side effect.
      • The worst potential side effect of regeneration is 'regen cancer', which mostly affects those in the regen 3 to 5 range: once a tumor has started, death is inevitable, swift, and gruesome, as their body becomes a mass of out of control cells that eventually explodes into chunks.
  • Rick Point Blank: The plot revolves around a serum that heals wounds when it's poured on them and grants a Healing Factor that would make Wolverine jealous when injected. Unfortunately it also causes insanity.
  • In The Salvation War, the demons and angels have extremely fast regeneration, to the point that they can regenerate lost limbs completely and can recover from any other injury given enough time, provided they don't immediately bleed out. This is deconstructed later on in the story's discussion thread, after an angelic army gets nuked: the rapid regeneration rate, coupled with rapid mutations due to immense radiation from the nuclear initiation results in uncontrolled cancer growth in the survivors. The deceased humans are also capable of healing rapidly.
  • Veldron of Super Stories can regenerate when very close to death, causing many to assume that he has this power all the time. He doesn't.
  • In Dead West, the aristocrats might have this as a Psychic Power, commonly paired with Healing Hands. The Porcelain Doctor has this, too, and he is "leaking", which means Gervas and Thomas also seem to display this. Niall states he cannot regrow limbs, but bones are apparently fair play. A French aristocrat said they can heal everything the body supposed to heal, but brain damage is a though deal. Most likely because their abilities are damaging their brains.
  • Trinton Chronicles has Xiion who heals at a highly rapid rate which he can do at will for a faster rate of healing or subconsciously for a slower but faster-then-normal rate.
  • In We Are Our Avatars, Yasmin can heal incredibly quickly, to the point that she's incredibly apathetic toward pain. There's also Ozzy (A.K.A. Gina), Snake, and various other Gods/Characters who have this ability.
  • Discussed in a couple Cracked articles:
  • Othala from Worm has the power to grant this to other people.
    • Then, of course, there's Crawler who can regenerate any injury in seconds - even having half his brain teleported into a parallel dimension - and then develops a permanent resistance to whatever hurt him in the first place.
    • The Endbringers have this as well. It's not fast enough to heal wounds in the same fight they got them in, but it's powerful enough for them to regrow their entire bodies from their cores if necessary.
  • Entirely Presenting You: It's one of Alexis Barnett's few powers, and it's her most useful, having saved her from all sorts of damage that a normal person couldn't walk away from. Like getting her arm ripped off, getting hit by a truck, getting stabbed, twice, among so much worse.
  • SCP Foundation. Generally speaking, any SCP item tagged "self-repairing" will have this to some degree.
    • SCP-290 ("The Picasso Machine"). While a person is undergoing bodily reconfiguration inside SCP-290, it grants them rapid healing as part of the process to repair the harm it causes them.
    • SCP-378 ("Brainworm"). When SCP-378 occupies a human being's brain, the host gains the ability to almost instantly regenerate physical damage. In one case a host tore off his own arm and attacked using it as a weapon. When he pressed it against his shoulder it re-attached immediately.
    • SCP-415 ("The Harvested Man"). SCP-415 heals from damage at an accelerated rate and is able to re-grow lost internal organs.
    • SCP-428 ("The Crowd"). Damage to SCP-428’s "crowd" heals at a faster than normal rate. For example, a bullet hole will close up within a few days.
    • SCP-446 ("Human Mannequin"). According to document Document 446-1-A, any wounds SCP-446 receives will heal within 5-10 minutes with no scarring.
    • SCP-466 ("Mobile Veins"). SCP-466 is noted as being able to heal any damage to itself at an accelerated rate.
    • SCP-628 ("Flute Copse"). When cut, the trees heal at a tremendously accelerated rate. A tree cut completely through can heal within a day.
    • SCP-633 ("The Roaring One"). SCP-638 heals at an abnormally high rate proportional to its consumption of raw meat and wine.
    • One of the defining characteristics of SCP-682. The only long-term solution for containing it is to keep it in a vat of concentrated hydrochloric acid, and even then it still sometimes manages to temporarily escape.
    • SCP-1160 ("Effective Containment"). SCP-1160 can quickly and completely regenerate injuries and lost body parts.
    • SCP-1262 ("Seed of Destruction"). SCP-1262 can rapidly regenerate damage to itself, making it difficult to eradicate.
    • SCP-1368 ("Aegides"). SCP-1368 can absorb dust and use it to rebuild its structure, allowing it to heal almost all types of damage except fire.
    • SCP-1495 ("Karmic Musth"). SCP-1495 elephants heal from injuries at an accelerated rate.
    • SCP-1557 ("Giraffe Hell"). SCP-1557-A are giraffe souls condemned to SCP-1557. Any damage inflicted on SCP-1557-A is quickly healed by unknown means.
    • SCP-1627 ("Mushroom Wars"). A human being infected by SCP-1627 fungus can become an example of SCP-1627-A. They will be completely healed of all damage, including tissue damage, bacterial and viral infections, and cancer. Any person that touches an SCP-1627-A will temporarily gain the same benefits, but will suffer Rapid Aging and die over the next two weeks.
    • SCP-2102 ("Got Shoggoth?"). As a result of the experiment that created it, SCP-2102 can heal its wounds a quadrillion times as fast as normal. Unfortunately the process doesn't stop when the healing is completed, and the subject's body grows out of control.
    • SCP-2260 ("Traveler's Journal"). When a human being is exploring a remote area using SCP-2260, their body will heal from injury at ten times the normal rate.
    • SCP-2922 ("Notes From the Under"). When a human being implanted with SCP-2922 dies, they go to an afterlife that the Foundation calls Corbenic. The body they have there regenerates all physical damage it takes in seconds.

    Western Animation 
  • The Minions of Set from Samurai Jack have an incredibly powerful healing factor. Even Jack's sword, forged by the gods themselves out of the power of human righteousness, and the only thing in the universe capable of harming the Made of Evil Aku, only slows them down for mere moments. They can regenerate from nearly being cut in half with it in less than a second, with no side effects whatsoever.
  • In Jackie Chan Adventures, the Horse Talisman does this, granting whoever has the power to heal almost instantly from injuries, together with the Dog Talisman, which grants immortality and eternal youth/youthful energy (the energy going to those above a certain age) they grant Complete Immortality.
  • Transformers:
    • Starscream gets this in Transformers Animated from an Allspark fragment in his head. Which is based on how G1 Starscream was Ret Conned into having one to explain how he came Back from the Dead. But that was only his spark (soul) which was immortal, he didn't have a body, regenerating or otherwise. Which lead to him floating around like a ghost for quite some time until he could scam himself a new shell (or steal someone else's).
    • Transmetal 2s in Transformers: Beast Wars have the ability to heal mild to moderate damage near-instantaneously using energy from their spark. Rampage also has one, as he was created by an experiment to duplicate Starscream's spark.
    • Godmasters in Transformers: Super-God Masterforce have this as one of their defining features.
    • Megatron in Transformers Cybertron can regenerate damaged parts of his body much more easily than ordinary self-repair systems thanks to the Armor of Unicron. Stealing a Dark God's power has its perks.
  • Gargoyles have a form of accelerated healing attached to their stone sleep. Spending a day in stone sleep cures them of any wounds, infections or toxins in or on the body. However, if a body part is amputated, it's gone for good. This only applies to their hibernation. Until the sun rises, they're as badly affected by an injury as any other creature. Demona and MacBeth appear to have this, too, as long as they're not in the same room.
  • SpongeBob SquarePants:
    • SpongeBob, being a sponge and all, can grow back severed parts of his body with no problem. He was surprised when he found out others couldn't do it as well.
    • In "Karate Star", Patrick tears off his karate chop arm in order to stop the wreckage he's uncontrollably causing. He grows his arm back, but the arm grows a new body, as is typical for starfish.
  • Darkwing Duck: Bushroot's Healing Factor is seldom seen, but he completely recovers from being squashed in his first episode and later from being shredded into small pieces. Being part plant helps.
  • Killface of Frisky Dingo has a rather handy healing factor. Metal pipe through the lung? Nah, tend to Simon's scraped arm. Rocket through the chest, and a gaping hole from the explosion? Fixed with a little bedrest. Though his healing factor was unable to heal his eyes after he was blinded by AntAgony.
  • Adventure Time: The Ice Crown grants this to its wearer, to the point where both wearers shown were able to survive nuclear war. Marceline also seems to have this due to her demonic ancestry, although it isn't as powerful as the Crown's.
  • The Septarians from Star vs. the Forces of Evil have this ability. Toffee's in particular is very potent aside from his missing finger which was blasted off by dark magic. Later we learn that they can regenerate from body parts (though it takes a long while) as Rasticore was reduced to a hand and when we next see him he's gone up to his elbow.

    Real Life 
  • The axolotl is a neotenous amphibian that can regenerate limbs and organs that were damaged or lost. Although it doesn't give it Immortality, it does make it live much longer. It's used as a model in biomedicine.
  • Salamanders are perhaps the most complex animals capable of regenerating limbs in adulthood.
  • There are some species of starfish that not only grow new limbs, but the detached limb can grow a new starfish!
  • Sponges can be put through a fine strainer and they will eventually recoalesce.
  • Flatworms can regenerate bits, including heads, although it's possible to mess with this in ways that result in two-headed flatworms.
  • Some round and segmented worms also can do that, but with the two-tailed and two-headed mistakes as well. It generally depends on the location and extent of the injury.
  • Most leafy plants are able to regenerate from practically any damage, as long as they can still acquire nutrients and the materials needed to synthesise sugars (in other words, their roots and/or leaves still need to be at least partially functional). Many plants can be propagated simply from cuttings. In fact for a large number of domestic fruit trees, grafting a piece of an existing tree onto an existing rootstock is the only way that they are reproduced. Moreover, using special nutrition, leaf plants may be regrown From a Single Cell.
    • As a specific example, notable even among leafy plants, willows are extraordinarily regenerative plants which actually grow more lushly if some of their limbs are hacked off; they can even regrow from piles of wood-chips. Most plants are less enthusiastic about damage. But putting a cutting from a willow in the same basin of water as a cutting from another plant can encourage the other cutting to start sprouting roots — the hormones the willow puts into the water affect the other plant too.
  • There is anecdotal evidence that toddlers can regenerate fingertips that have been severed for whatever reason (not the entire finger, just the top 1/8 inch or so).
    • Supposedly, a man was able to regrow a fingertip that was cut off by applying a special powder, given to him by a researcher, to the open wound. There was a report on The BBC a while back.
      • That sounds like dehydrated Extra Cellular matrix, it's a sort of universal animal cell growth medium, by applying dehydrated stuff to the wound it re-hydrates and triggers the growth of the surrounding tissue.
  • The liver in humans is said to regrow from just a third of its normally functioning tissue. This is why living-donor liver transplants are possible (although hardly easy): the donor can lose 55-70% of his or her liver and expect to have it back to near 100% functioning within six weeks, and it will be fully up to normal size and structure within two to three months.
  • Blood platelets. When flesh is cut, leading to bleeding, blood platelets are life-savers. They cause blood clots (better known as scabs) along the cut, stopping the release of blood until other body functions can fix up the blood flow. This makes them sort of a pre-Healing Factor Healing Factor.
  • Humans do possess the Genes to regenerate limbs, however they are heavily mutated and are considered Junk DNA: Anti Heat Shock Protein 60 and Fibroblast Growth Factor 20 are in both humans and certain types of Zebrafish and Salamanders. Those with the mutant variants of the gene only get scarring. For the animals with the functioning genes, the cells around the wound site revert to their embryonic state and reform the lost part.
  • Even without the ability to regrow lost limbs, humans still have an amazing healing ability when compared to other species. Our ability to recover from injury and our resistance to shock is absurdly high compared with other animals, and coupled with our high endurance this allows us to recover from virtually any injury that is not immediately fatal. Humans also form scar tissue at a much higher rate than any other animal on Earth, meaning a wound that might take an animal months to heal could be healed on a human in weeks.
    • A timeline of what happens with a smoker quits is one very good piece of evidence to show just how good the human healing factor is. To put it in perspective, it takes under a year for the body to return to more or less normal function. The risk of nasty diseases will drop significantly within years.
    • It's speculated that the reason humans are unable to regenerate limbs is because having this ability would drastically increase our chances of getting cancer.
  • Spiders can regrow lost limbs when they molt. However, their ability to heal injuries to the torso is poor, especially in tarantulas. Many other arthropods can replace appendages during a molt as well.
  • MRL mice are capable of regenerating lost tail tips and repairing organ damage... something no other mice can do.

Alternative Title(s): Regeneration, Super Healing, Enhanced Healing

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