Nathan: Blood. An ocean of blood. I wonder how many blood drops of blood there are in this blood ocean. I wonder how much is it in a drop. I wonder, has... well, I... let's just say there are approximately ...One way to show Ludicrous Gibs without breaking the laws of biology is to have a character die in a body of water, thus diluting the blood and causing it to billow out in clouds. As a bonus, this tends to look very symbolic... of nothing in particular. Of course, if this happens in the open sea, the probability that someone will mention sharks, and their ability to smell a single red blood cell from 6 million light years away, rapidly approaches 1.note Another common appearance is in an Out, Damned Spot! hand-washing, or a post-carnage Shower of Angst. In a case of Reality Is Unrealistic, real blood diluted in a large volume of water will actually turn it yellow, the color of blood plasma (the liquid portion of the blood), not pink/red. However, the picture above is accurate in regards to small amounts. A related phenomenon above the waterline is Pink Mist. Can be a symptom of Gorn. A Bath Suicide or Deadly Bath is likely to invoke this. Compare Blood Bath, where circumstances see blood substituted for water. Not to be confused with Blood In The Water.
— Dethstars, Metalocalypse
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Anime & Manga
- In the Yakuza arc of Black Lagoon, the resident Jerkass gets his hands sliced off (with a sword, in a modern-day setting) and is held underwater to bleed to death. Yes. He had it coming, though.
- The ending sequence of Higurashi: When They Cry begins by showing blood which has just fallen into the water.
- A Running Gag in One Piece is Robin casually pointing out this trope whenever it seems as though someone might be killed particularly messily underwater, much to the discomfort of everyone in earshot.
Robin: Well, he's not dead, or the water would be turning red.
- In an early filler episode of D.Gray-Man, Kanda fights another swordsman in a pool of water and gets slashed across the chest. The last shot of the episode is of his blood spreading through the water around him.
- Defied in The Legend of Total Drama Island to set up a Hope Spot when a certain contestant dives into shark-infested waters and misses the safe zone. The cliffhanger arrives with said contestant still submerged, but the narrative explicitly states that there was no visible blood.
- How Blackie Fuchs finds the corpse of Nurse Raindew in My Little Pony: Friendship Is Magic and My Little Pony Tales Crossover MLP Trinity.
Films — Live-Action
- Pretty much every death in Jaws, for obvious reasons.
- Dieter Stark's death at the hands (claws?) of the compys in The Lost World: Jurassic Park. Also, Robert Burke's death has parts of this, as you see his blood flowing down the waterfall.
- Psycho, the shower scene ends with bloodied water going down the drain. It was made possible with chocolate syrup. An inversion of this is also why the movie is in Black and White, since Hitchcock felt that "pink wasn't scary".
- The Golden Voyage of Sinbad. After Prince Koura is mortally wounded while in the Fountain of Destiny, the Fountain's waters turn red to symbolize his blood loss.
- The finale of The Omega Man, where Charlton Heston dies in a Christ-like pose in a blood-filled fountain. His blood is also the world's salvation, to really push the symbolism.
- The end of Sympathy for Mr. Vengeance has one of the characters killing another in a shallow river and then drag him ashore.
- Occurs in the film Godzilla vs. Mechagodzilla. In the first battle between Godzilla and his robot counterpart, Godzilla is shot several times by Mechagodzilla and falls into the ocean. The ocean turns red with Godzilla's blood but, he gets better.
- Saving Private Ryan has many soldiers die before reaching shore as bullets hit them below the waterline. By the end of the scene, the entire surf is red.
- Several movie versions of The Great Gatsby do this with Gatsby's death in his swimming pool.
- In Fool's Gold, an enemy scuba diver is sucked into a current in an underground cave that feeds a geyser. When the geyser erupts, it's red with his blood.
- Connor Rooney is shot in the bath in Road to Perdition.
- Tony Montana's death at the end of Scarface (1983).
- In The Godfather Part II, a character commits Bath Suicide, Roman fashion. You only see the aftermath, including liberal helpings of blood on the walls for good measure.
- In Black Swan, blood mysteriously drips into the bathtub over Nina's face as she submerges herself, right before one of the film's many Jump Scares...but it might not have really happened.
- The Crazy 88 fight in Kill Bill ends up with several of the mooks, and Johnny Mo, lying dead in the restaurant's now-crimson ornamental water features.
- When a slasher movie has a name like The Pool, it is to be expected. A specific example would be the very first death, which is followed by the victim's corpse being dropped into a pool, spreading blood in the water.
- Discussed towards the end of Get Him to the Greek, when the burned out and increasingly suicidal rock star Aldous Snow breaks his arm diving into a pool from a hotel roof, then has a tearful conversation with Aaron about how destructive his lifestyle is and that it's not working for him. All the while astute viewers may notice that in the background the pool is getting increasingly bloody. Aaron mentions it at the end of their conversation and asks Aldous if he's OK. Aldous shrugs it off, saying that a little blood looks like much more than it really is in water.
- In The BBC's "Hollow Crown" adaptation of Richard II, Bolingbroke beheads two of Richard's supporters on the edge of a lake, such that their heads fall directly into the water.
- The opening credits to Skyfall feature this heavily, after the Action Prologue ends with Bond being shot and falling into a river.
- In the American version of The Ring, a horse being transported on a ferry gets loose, jumps overboard and gets washed under the boat. A few seconds later, the boat's wake turns bright red.
- Blood flowing into water is something of a motif in Legend of the Black Scorpion. At one point the emperor dropping a red grape into water evokes earlier examples of actual blood in water and signals that an execution is coming.
- The teenage Antichrist's baby baptism in the 1981 horror film Fear No Evil turns the water into blood the instant he is immersed.
- In Death Becomes Her, the water in the pool Helen Sharp falls into turns red with blood when her rival Madeline Ashton blows a hole in her stomach with a shotgun.
- In Book 10 of the Lone Wolf series, The Dungeons of Torgar, one of the paths to the end is to travel through the deadly Hellswamp with the partisan leader Sebb Jarel. Eventually, Lone Wolf and Jarel are ambushed by the dreaded Ciquali (frogmen) and Jarel is dragged underwater.
He surfaces, sword in hand, but is pulled under again and this time he does not reappear. A trail of bubbles and a patch of red water drifting with the current are all there is to mark the grave of Sebb Jarel.
- Left Behind
- As in the Book of Revelation, the seas and springs of water turn to blood due to God's judgments. However, during the Bowl Judgments in the series, believers in Christ are miraculously able to get fresh water from the bloody springs.
- Earlier in the series, the Two Witnesses are able to turn water to blood and vice versa, which squicks Carpathia out during his failed speech at Teddy Kollek Stadium when his mouth starts to run dry and he asks for water.
- Chaim Rosenzweig as Micah the prophet is also given this ability.
- The murder in the Lord Peter Wimsey novel Have His Carcase.
- Warrior Cats has Hawkfrost's death, and to a lesser extent, Ashfur's death.
- Dewey Denounment dies in a pond in A Series of Unfortunate Events books
- At the Cornucopia in Catching Fire, after the Victor bloodbath.
- A couple of times in Neverwhere, for example when Door's brother is killed and left in their swimming pool.
- Gatsby's death is described that way in The Great Gatsby.
- The swimming pool scene in the video to Pink Floyd's "The Wall".
- Florence + the Machine's "Rabbit Heart" refers to this in the context of a Human Sacrifice.
- In the music video of Manowar's "Gloves of Metal" this happens when the guy who is hit by Joe de Majo's morning star drops dead into a brook.
- Love's "A House Is Not a Motel" from Forever Changes:
And the water's turned to blood, and if
You don't think so, go turn on your tub.
Myths & Religion
- The Bible has the Nile turning to blood. While the blood wasn't from anyone dying, several movie versions have the blood fanning out from one source (usually Moses), giving off this effect as the transformation ensues.
- "Krákumál": As Ragnar recalls his viking career, the image of blood mixing with water is evoked repeatedly. In stanza #3 "wound-sweat [i.e., blood] swelled the ocean", stanza #4 tells a "river was all reddened / with hot running wound-splash", and stanza #19 relates that "Irish blood was blended / with brine, at the slaughter."
- The Borgias: Micheletto's failed assassination of Cardinal della Rovere in Naples results in this, as he garrotes an unfortunate mook who attacks him after being recognised by the target.
- In the first episode of the Melrose Place remake, Sydney Andrews is found murdered in the pool of the apartment complex, with more than a little blood in the water around her.
- In an opening to an episode of The Closer, there's a blink-and-you-miss-it shot of blood splashing into a swimming pool.
- This trope is rather visible in the first season finale of Terminator: The Sarah Connor Chronicles, when Cromartie disposes of an entire SWAT team into a swimming pool.
- The fifth season opening of Supernatural.
- Dexter: Bathtub deaths form a major part of the Trinity Killer's pattern. This is later revealed to be due to a youth trauma in which the young Arthur Mitchell witnessed his sister's accidental death in a shower. Startled by Arthur's presence, she slipped and smashed the shower door, shards of which cut her femoral artery and caused her to bleed out in the water.
- Vera: In "Silent Voices", the Victim of the Week is murdered while swimming in a stream. There is a shot of blood from her head wound flowing into the water and being diluted.
- CSI: Cyber: In "Legacy", a 13 year old hacker is shot and falls into a swimming pool. Red is shown ballooning out from a round him as he sinks into the water.
- Agatha Raisin: In "Agatha and the Wellspring of Death", when the second Victim of the Week is found dead and propped up against the eponymous wellspring, there is a shot of her blood slowly dripping off her and into the spring where it dilutes through the water.
- In the Stormwrack supplement for Dungeons & Dragons, spilling blood underwater attracts sharks. It also inverts it with a spell that turns blood to seawater.
- In Assassin's Creed, Altair's first target, Tamir, stabs a man to death and lets the body fall into a shallow pool of water which rapidly becomes red with blood.
- The second time Jester pops up in Devil May Cry 3: Dante's Awakening, he causes a nearby stone fountain (adorned with seemingly decorative gargoyles) to overflow with blood, awakening the now demonic Bloodgoyles to attack Dante, who isn't very intimidated.
- In an old build of Dwarf Fortress, a single spattering of blood would turn an entire body of water red. Even the ocean. It's still played straight; blood like any other contaminant lingers where it's washed off, and fills a tile of standing water or flows downstream with running water.
- In World of Warcraft, if you kill a beast in the Borean Tundra, you find yourself covered with blood (which will piss off the local Animal Wrongs Group). You can wash it off by swimming in water, which will leave behind a "pool of blood." Repeatable fishing quests require you to do this deliberately because the blood attracts a unique type of fish.
- Whenever the shark kills someone underwater in Jaws Unleashed during the cutscenes, it turns a big area in the water blood red.
- In Brothers: A Tale of Two Sons, the brothers come upon a bloody battleground of giants. The battle apparently just happened, because the giants' blood is still flowing into nearby streams, and even makes a waterfall run red. The brothers have to wade through the water to progress and make sounds of disgust as they do so.
- The menu screen for Dead Island has this constantly going on as a background. It's actually quite pretty, rather like a lava lamp. Made of blood.
- MadWorld takes this trope Up to Eleven (as it does with just about everything) in the Courtyard, where there is a fountain in the center of the first part of the level. Impaling people on the spiky parts cause that part of the fountain to start spewing blood in the place of water. One of the Deathwatch Challenges is actually nailing a body on every spike on the fountain.
- A couple of Mortal Kombat games feature stage fatalities which result in the loser being thrown into water. This being Mortal Kombat, it's no surprise that a swarm of nasty creatures (possibly piranha) happens to be lingering just below the surface, quickly reducing the victim to a bloody cloud in the water. It's probably saying something that this is one of the tamest and least graphic deaths in the series.
- Lord Woo Fak Fak, the giant anglerfish boss in Banjo-Tooie, billows blood into the water whenever he's hit in one of his prominent glowing weak spots. Especially dramatic given that this is in E-rated game.
- One case in Phoenix Wright: Ace Attorney – Spirit of Justice involves a priest dying in a shallow pool, which coats the crystal clear water a grisly crimson, which you can observe in the crime scene photo.
- Truth in Television in that people who are sensitive to seeing blood will often do fine until they go to wash the wound and see the red spatters in the sink.
- Similarly, cutting yourself in a swimming pool can be a harrowing experience.
- Or having your gums bleed while brushing your teeth. Sink looks like a murder scene. The worst is after getting your wisdom teeth removed, the holes will often bleed profusely, resulting in spitting huge mouthfuls of blood into the sink.
- Or getting your period unexpectedly in the tub/pool/ocean/what-have-you. Even going to the bathroom while you're on it can produce this effect.
- When doctors are treating people who have cut themselves badly and ask them to estimate how much blood they've lost, they take this trope into account, knowing that people who have bled into water are likely to grossly overestimate.
- Hemorrhoids also have this effect. Toilet water dilutes the blood in stool, making it appear that the patient has lost much more blood than they actually have.
- Not actually blood, but; Red Tide, a harmful algal bloom that turns water red and can kill fish and other sea-dwelling life. It's been suggested that this inspired the Nile turning to blood in the Bible, as mentioned above.
- When the carbon dioxide in Lake Nyos suddenly erupted from the water and killed nearly 1800 people, the disturbed iron turned the water's surface red.
- Nicking yourself while shaving in the shower (more frequent for women than men) means that the blood takes much longer to clot than usual. "Ow! I'll need a bandaid" will rapidly become "HOLY CRAP WHY IS THE BATHTUB RED?!"
- There was an incident at SeaWorld where an orca attacked another orca during a show. The pictures are horrifying.
- The Cove, a documentary about secret dolphin killing in a town in Japan. At one point there's an underwater camera, which seems like it serves no purpose other than to look into the very clear water at the bottom of the cove. A few seconds later, the entire view of the camera turns a bright, opaque red from the top down due to the quantity of blood in the water.
- When the toilet gets clogged as a result of some girl or woman who decides to flush her feminine hygiene products down the toilet instead of properly throwing them away.