[[AC: ''Webcomic/AxisPowersHetalia'']]
* ''[[http://www.fanfiction.net/s/5855349/1/Global-Inflation Global Inflation]]'' has [[Webcomic/AxisPowersHetalia all the nations at a meeting]] starting massively gaining weight as a result of economic inflation.

[[AC: ''ComicStrip/CalvinAndHobbes'']]
* PlayedForLaughs in ''Fanfic/CalvinAndHobbesTheSeries'', where Calvin uses the Transmogrifier Gun to ''fuse The Riddler's hands and feet together.''

[[AC: CrossOver]]
* ''Fanfic/ATriangleInTheStars'' has the [[spoiler: Cluster Demons]] from the school arc. They're reminiscent of the Gem Mutants from the primary home series, [[spoiler: punished amalgamations of different demons who refused to break their loyalty ties from Bill to join Gabriel]].
* ''Fanfic/ChildOfTheStorm'' has Gravemoss as a one-man (though calling him a man is dubious because of his origins -- he's from Alfheim -- and he's basically a HumanoidAbomination) vehicle of this. His main contribution is [[spoiler:the ''veidrdraugar'' a.k.a. the Hunting Dead]], which are just as terrifying as they sound, being [[spoiler:super-fast, super-strong stealth zombies that hunt in packs by way of telepathic connection with a ravenous hunger]], though, being a {{Necromancer}}, he provides plenty of contributions, such as (apparently permanently) mutating werewolves into giant (i.e. the largest is referred to as hummer sized/tank sized) wolves all month round and slaughtering what is possibly every Hebridean Black Dragon on the planet with a spell which was [[ShoutOut purposefully reminiscent of]] [[Webcomic/TheOrderOfTheStick Dark V's Familicide]] and [[{{Dracolich}} reanimating them]] [[NightOfTheLivingMooks as an undead army.]] Some of them had visibly broken bodies, from where they landed badly on dying. They flew anyway.
** Gravemoss himself has this [[KickTheSonOfABitch inflicted on him]] [[HumiliationConga repeatedly]] in chapter 76. First, [[spoiler: Chthon briefly possesses him and makes him smile so widely that his skin rips open to give him a GlasgowGrin]], Second, [[spoiler: Harry]] snaps and telekinetically opens his chest cavity like a book and rips out his heart - something his companions describe as disgusting, before he and [[spoiler: Carol as the new Green Lantern]] blast him halfway across London and third, when he winds up in front Wanda and Harry Dresden, the former of whom reopens a number of former wounds, before the latter [[spoiler: accidentally conjures a Soulfire lightsabre]] which he uses to eviscerate the necromancer, then [[spoiler: chop his arm off.]] Really, it's only because he's got an insanely powerful HealingFactor (as a result of being a HumanoidAbomination) that he's still alive.
** Wanda inflicts this on [[spoiler: Sinister]] in chapter 10 of the sequel, ''Ghosts of the Past'', following through on a promise to reduce him to 'traumatised, screaming atoms'.
* The fact that the VideoGame/FiveNightsAtFreddys cast have this inflicted on them in FanFic/DantesNightAtFreddys is meant to be part of the appeal.
* Happens on a disturbingly regular basis in ''FanFic/FalloutEquestriaProjectHorizons''. Limbs melt and fall off, leg bones melt into jelly (forcing the victim to walk with a set of metal braces), an eye gets crushed in its socket by a rapidly-growing tumor, another character mutates into a writhing mass of tentacles, eyes, and mouths, Blackjack is forced to relive the experience of a pony being [[FusionDance forcibly merged]] with [[MixAndMatchCritters a cockatrice]], and a character is hit in the face with a burst of DeadlyGas, melting his eyes and sealing his nose and mouth shut forcing TheMedic to [[InstantDramaJustAddTracheotomy cut his trachea open to allow him to breathe.]]
** Its source material ''Fanfic/FalloutEquestria'' had its good share too with the Goddess, and the Pink cloud. The latter in particular was noted for its horrifying ability to fuse living creatures to inanimate material, everyone exposed to it wearing clothes or armor will never take those things of again.
* In ''[[http://azeira.deviantart.com/art/A-Madman-s-Circus-Part-1-314368512 A Madman's Circus]]'' is a ''Manga/DeathNote'' FusionFic with [[Music/{{Vocaloid}} Vocoloid's Dark Woods Circus]] the "attractions" at [[LightNovel/AnotherNote Beyond Birthday's]] CircusOfFear are a boy with his face half-blown off forced to dress as a girl, a girl with her eyes gouged out, and a woman nailed to a pole, burned alive and fitted with some sort of torture device in her neck so she screams on command. All of them were at one point just children and visitors stolen by the circus.
* What happens to anyone taken by the invading aliens in ''[[FanFic/SovereignGFCOrigins Origins]]'', a ''MassEffect''[=/=]''StarWars''[[spoiler:[=/=]''[=Borderlands=]''[=/=]''[=Halo=]'']] MassiveMultiplayerCrossover. We get some descriptions of what, exactly, happens when turian, salarian, vorcha, batarian, or elcor [[spoiler:meet the Flood]]. [[CaptainObvious It's not pleasant.]]
* ''Fanfic/ChildrenOfAnElderGod'':
** [[EldritchAbomination Amaliel]] was a dark, green blob with crab-like claws, tentacles and something vaguely resembling a head.
--->"... an almost globular torso, with six long sinuous limbs terminating in crab-like claws. From the upper end a subsidiary globe bulged forward bubble-like; its triangle of three staring, fishy eyes, its foot-long and evidently flexible proboscis, and a distended lateral system analogous to gills, suggested that it was a head."
** Violator -another of the Lovecraftians abominations fought by the main characters- had mouths on its palms. And mouths, tongues and tentacles everywhere.
* ''Fanfic/ThousandShinji'': When [[spoiler:[[{{Plaguemaster}} Rei]]]] transforms into [[spoiler:"Reigle"]], her body looks like a putrid, living corpse and a plague-spewing sin against biology due to [[TabletopGame/{{Warhammer 40000}} Nurgle]]'s "gifts" and mutations.
* In ''Series/BuffyTheVampireSlayer''/''ComicBook/{{Supergirl}}'' crossover ''Fanfic/TheVampireOfSteel'', a Kryptonian vampire called Zol-Am runs into two vampires who were vaguely humanoid and "had misshapen heads and hands that simply weren’t right".

[[AC: ''Manga/DeathNote'']]
* The SlashFic ''[[http://archiveofourown.org/works/210760/chapters/315442 Not An Angel]]'' has a slightly more realistic (or rather {{Squick}}y) take on [[FreakinessShame WingFic]] that goes into detail about the organic processes involved of growing new appendages out of one's back.

[[AC: ''Manga/DetectiveConan'']]
* In ''FanFic/{{Experiment}}'', Haibara implants a strange metal into Conan to get him permanently back to his old self. However, after Shinichi realises [[GoneHorriblyWrong he has wires on his back]]...

[[AC: ''Manga/ElfenLied'']]
* In ''Fanfic/RoboBando'' Hdoug is constantly burned and tortured by Robo Bando to the point his body is a unrecognizable decaying, dying lump of flesh.

[[AC: ''{{Series/Emergency}}'']]
* [[http://shiloh.tvheaven.com/hall.html This]] paranormal-themed series involving shapeshifters has a somewhat mild form. If a person survives the bite that turns them into a cat shifter, their skin becomes transparent near the end, then bursts open to reveal their new feline form. The aftermath is a lot of gooey, icky stuff on the fur that has to be cleaned off as soon as possible.

[[AC: ''Literature/HarryPotter'']]
* As per most ComicsNix fanfics, ''Fanfic/TheWolfBloodLineage'' is a ''parade'' of hilariously over the top {{gorn}} and cringe worthy bodily modifications. Bonus points go to the descriptions of Voldemort's lair, Hermione's sex change, and [[spoiler:Draco Malfoy having his hand skinned off, and replacing the skin with cheese]].

[[AC: ''WebComic/{{Homestuck}}'']]
* The Kin in ''FanFic/{{Hivefled}}''verse are the ghosts of young trolls who died in the Grand Highblood's torture chamber. Of the two most prominently featured, Laneen had the flesh stripped off her arms and an extra pair of horns surgically installed to make her look more like the [[{{Yandere}} Condesce's]] Helmsman, then had her throat cut when she [[DrivenToSuicide clawed out her own tongue to render herself boring]]. Her partner Sennir has [[TwoFaced half the flesh stripped off his head and neck]] and a gaping gutwound (though he was lucky in that [[spoiler:[[{{Transsexual}} his dead self is appropriately male]]).]] Gamzee escaped alive, but now has a broken horn and a GlasgowGrin. Various other ghosts have appeared, including a [[{{Squick}} twelve-year-old]] with a broken neck, a boy with crushed legs, a girl with a severed arm which floats beside her shoulder stump and another girl whose arm is missing completely, and a boy who died from drinking dirty water in a manner the authors tried to be subtle about ([[spoiler:most of his guts exited his body in an insalubrious manner]]).
* Webcomic/{{Heinoustuck}}. All of it.
* in the post-Sburb fanfic ''FanFic/WarboundWidow'' we get shown some close-up interactions with helmsmen. Jane and Roxy express severe disgust when they encounter the Observer (who's basically a spyware version of a helmsman) due to her limbs and the majority of her body being eaten away by the organic machinery, leaving a half-dead corpse trapped inside. Jane also finds out during her scan of the Observer that she's missing her hands and feet and [[WordOfGod Word of God]] confirms helmsmen get those limbs removed and the tentacles fed into their systems through the stumps. Later we're also introduced to Husks, who are portable psionics who've had their arms and legs surgically removed. They're essentially mobile power units which are crippled yellowbloods, [[AndImustScream who are still self aware.]]

[[AC: ''WesternAnimation/JackieChanAdventures'']]
* ''Fanfic/{{Webwork}}'' really puts [[VillainProtagonist Jade]] through the ringer during her [[SlowTransformation years-long]] PainfulTransformation into a [[SpiderPeople Jorogumo]] -- first, her organs slowly relocate themselves into an abdomen that grows out of the base of her spine. Then she starts growing extra limbs. Then her teeth fall out to be replaced by fangs. And finally, ''all her skin peels off and her bones disintegrate'' so that her exoskeleton can grow in, a part of the process so awful that the Old Queen has to cocoon her in order to keep her alive through it.
** After [[DiabolicalMastermind Chang]] gains the Samurai Essence, his skin slowly starts to dry up and peel away as his new demonic scales come in.

[[AC: ''Franchise/KingdomHearts'']]
* ''FanFic/KingdomHearts3FinalStand'': In Halloween Town, Ven takes the form of a decaying zombie; several of his body parts tend to fall off at random.

[[AC: ''VideoGame/LegacyOfKain'']]
* ''[[FanFic/LegacyOfKainDivusSaga Legacy of Kain: Absolution]]'': In chapter 31, a spy working for Alicia Ottmar falls victim to the Font of Putrescence spell. Said spell involves him being infested with parasitic worms, which emerge from every orifice in his body and devour him from the inside out. Alicia is rightfully horrified at the sight.

[[AC: ''Disney/LiloAndStitch'']]
* The experiments' fates after Dr. Hamsterveil captures them in ''FanFic/WrathOfTheDamned''.

[[AC: ''Franchise/MassEffect'']]
* The Merged in ''[[Fanfic/MassFoundations Mass Foundations: Little Star]]''. They were created when two alternate states of each person were mashed together, causing things such as their mouths stretching at unnatural angles, having one body wide enough for two, or even have their head ''split in two''.

[[AC: ''WesternAnimation/MyLittlePonyFriendshipIsMagic'']]
* Two examples from ''FanFic/AsTwilightFalls''. First we have Luna [[PainfulTransformation changing Spike into adult dragon]] to fight a Discord's minion called Calamity. Then, we have Calamity himself – a skeleton covered with mass of various creatures' bodies sewn together while they're still (mostly) alive.
* TD's Ponification in ''[[Fanfic/TheNonBronyverse Don't Go In the Everfree Forest, TD]]''. The change is initiated by stepping in a puddle that acts like [[FanFic/TheConversionBureau Conversion Potion]] cut with HollywoodAcid. When he gets home, he notices his leg's itchy. to quote; "I looked down at my leg. The skin was peeling. Not like 'few-day-old sunburn'. More like 'You can see your muscles.'" As it turns out, as more of his flesh sloughs off, the more ponified he becomes. Twilight has a freak out when she sees him [[HalfHumanHybrid in-between,]] fingers and toes fusing into hooves, one eye massively bigger than the other, rotting skin dripping off new fur. At one point, convinced he's always been a pony, he peels what's left of his human scalp off.
* The "[[WesternAnimation/MyLittlePonyFriendshipIsMagic Human in Equestria]]" story ''[[http://www.fimfiction.net/story/23095/you-do-not-belong You Do (Not) Belong]]'' has its protagonist begin [[spoiler:growing a unicorn horn after a few days in Equestria. The scene where it begins ripping a hole through the skin of his forehead, which he is then forced to tear off, is ''Film/{{Poltergeist}}''-level disturbing, and it looks like it will only get worse from here]].
* In ''Fanfic/TheGreatAlicornHunt'', this happens to anyone who takes [[SnakeOilSalesman "Professor" Cotton Mouth]]'s flawed vitality elixir. [[spoiler: Including [[ProfessorGuineaPig Cotton Mouth]] himself, who among other things develops extra eyes and horns, and vestigial wings.]]
* In ''FanFic/ActuallyImDead'', in an AU where taking off the Alicorn Amulet killed her, Trixie is brought back by said Amulet as an undead creature with, but with her mind still intact in her decaying corpse. And just as things seem to be getting better [[spoiler: she dies again, only this time her body is completely destroyed by a fall from a hot air balloon, described in deatail and just when it looks like she can rest in peace, the Amulet brings her back yet again, but this time, as a monstrous mismatched creature, in a fairly unsettling scene.]]
* ''FanFic/ThePiecesLieWhereTheyFell'': [[spoiler: The Hivemind Body, first mentioned in the original story, is revealed in the sequel ''Picking Up the Pieces'' to be the fusion of several infant changelings into one biological structure.]]
* In [[https://www.fimfiction.net/story/48294/after-the-war---luna-aeternal Luna Aeternal]] Princess Luna survives a terrorist attack by containing an Anti-Matter bomb explosion, in [[https://www.fimfiction.net/story/50850/1/innocence-once-lost/a-new-world Innocence once lost]] we see the full extent of her injuries: she lost both wings, is blind on one eye and, unbeknownst to the general public, wears a very realistic prosthetic leg. Also, in the same universe, during the war, Rarity went blind after a flashbang grenade blew up in her face and Fluttershy also lost a leg when flying behind Rainbow Dash while she was dodging an enemy attack. Rainbow Dash forgot Fluttershy was there so she didn't warn her to dodge too and the enemy hit her by accident.

[[AC: ''Manga/OnePiece'']]
* In ''FanFic/ThisBites'', this is the aftermath of [[spoiler:Enel's ElectricTorture]] practically melts Cross's skin inside his armor.
** [[spoiler:Lily Carnation, as per [[Anime/BaronOmatsuriAndTheSecretIsland canon]].]]

[[AC: ''Franchise/SonicTheHedgehog'']]
* ''FanFic/SonicXDarkChaos'' is filled to the brim with this. [[TheVirus The Shroud]] in particular live and breathe this trope, with Tails' Shroud infection taking it UpToEleven as [[LovecraftianSuperpower it radically changes his biology]]. And then there's [[TheCorruption Dark Chaos Energy]] and its {{Squick}}y effects on the body.
** Thanks to the story's deconstruction of UnwillingRoboticization, Tsali [[spoiler: and Venus]] take this trope [[CyberneticsEatYourSoul to a whole new level]]. [[spoiler: Especially Venus, being cursed to have all of her body parts slowly transform into machines]].
** Actually PlayedForLaughs in Episode 74 - when Tails discovers he can dislodge his eyes from his sockets and move them around, one of the first things he does is use it to [[PowerPerversionPotential look up Amy's skirt]].

[[AC: ''Franchise/StarWars'']]
* In the ''[[FanFic/StarWarsParanormalitiesTrilogy Star Wars: Paranormalities]]'' trilogy, this is a common side-effect of Forceless possession for the victims. Aside from gaining a dark appearance and developing glowing red, crystal ball-like eyes, they may also have other mutations depending on the species of the host and intent of the Forceless symbiote. Such mutations may include {{ExtraEyes}} [[{{EyesDoNotBelongThere}} (sometimes in places they shouldn't be)]], extra body parts, an extra layer of skin, or having their internal organs shifted around in a way that makes the host dependent on the Forceless for survival. Also, the host is consciously aware of the mutations, and they are usually painful.
* ''FanFic/IWarrior'' has the normal amount of this trope in regards to [[ScaryDogmaticAliens Yuuzhan Vong]] OrganicTechnology, but also the affliction suffered by [[BigBad the Master]], whose body is slowly rotting away while he's still alive. [[spoiler: This turns out to be because of CloneDegeneration.]]

[[AC: ''ComicBook/TheTransformers'']]
* ''FanFic/{{Eugenesis}}'' gives us a [[SarcasmMode lovely]] description of a Cybertronian "budding" (I.E. their equivalent of giving birth). It happens quite immediately, without the subject being aware they were able to do that, hurts more than anything the subject has ever experienced or imagined, and very quickly involves various parts of their "biology" radically altering themselves simply to ensure the process is successful. Then, once it's done, it happens to them five more times. What's worse is that this is happening to the normally unflappable Soundwave.

[[AC: ''Franchise/ShinMegamiTensei'']]
* The Cambions and Guardians of ''FanFic/GoddessRebornChronicle'' can have this happen to them, as angels are most commonly [[NightmareFuel Cthulhu-like monstrosities and demons are often no better]]. Even worse, [[HumanoidAbomination the human inside is utterly gone when some fail their transformation]], leaving [[TheHeartless only the angel or demon in charge]]. There is [[AndIMustScream a refusal to think about if the human mind is still inside the 'husks' or 'abominations' by a Guardian]].

[[AC: Music/{{Vocaloid}}]]
* ''Fanfic/RottingCamellias'' is based off of the song "Dark Woods Circus," and features about as much body horror as one might expect from that.

[[AC: ''Machinima/YogscastMinecraftSeries'']]
* [[http://kleinerkiller.deviantart.com/gallery/41037509/Minecraftia-Saga Yognapped]] has a tendency to dip into it. [[BigBad Sben]]'s true face is [[spoiler: a mass of scorched muscles, bloody sinew, and shattered bones, with a mouth half-melted shut in places]]. When [[spoiler: Sben is resurrected]], the soul of [[spoiler: Herobrine]] occasionally forces him to painfully vomit more blood and foam than his body should be able to hold. And then there's [[spoiler: Lomadia]]'s modus operandi: using her ability to turn into smoke, she forces her way into a victim and slowly turns herself solid, expanding the unfortunate victim's body until it rips into pieces.

[[AC: ''WesternAnimation/YoungJustice'']]
* ''Fanfic/WithThisRing'':
** People modified by Black Power Ring.
** Johnny Sorrow’s encounter with the Subtle Realms disfigured his face to such an extent that almost anyone who looked at it [[BrownNote instantly died]].
** Destroying Johnny’s mask caused the laws of nature to start going haywire in his immediate surroundings. Because of this several Amazons who were too close to him had their bodies warped and mixed with objects of close proximity (e.g. one Amazon’s hand got stuck inside and mixed with a part of a wall, another’s face got mixed with a mirror she was holding, giving her skin reflective properties).
** Tormented\praying souls that constitute Hell’s background scenery.