A trope in which a character does something to mark himself and/or inflicts pain upon himself in order to [[TheAtoner atone for a misdeed]]. There is also an involuntary version where the state or some other authority stigmatizes someone in this way. Compare with EmbarrassingTattoo whose serious versions have some overlap with this.

Cranked UpToEleven, this trope becomes RedemptionEqualsDeath.
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!!Examples:

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[[folder:Anime and Manga]]
* ''DarkerThanBlack'' has an example of this with the Contractor Bertha - when a normal person, she was a chain smoker and her baby choked to death on some of her cigarettes she left lying around. In the series, Contractors are people with powers who have a Renumeration (something they need to do after using their powers). Hers is eating and regurgitating something, but as a constant reminder of her carelessness, she chooses to eat and regurgitate cigarettes.
* ''{{Yu-Gi-Oh 5Ds}}'' has criminals given an electronic tag that takes the form of a face marking.
* In Anime/SamuraiChamploo, Mugen has blue bands tattooed around his wrists and ankles, indicating that he had served time in a prison colony on Ryukyu. In Edo-era Japan, when the show is set, prisoners were often given such tattoos. Possibly averted in that the tattoos themselves aren't shown as stigmatizing in any way, or indeed worthy of any mention. [[spoiler:The warrant for escaping an execution by faking his own death, numerous former opponents bent on revenge, and his own habit of entering lethal combat with anyone, anywhere,]] however, is another story entirely.
* In ''Manga/FruitsBasket'', Saki Hanajima starts wearing black all the time to remind herself of her "sins", mainly the time when she [[spoiler:almost killed]] a boy who was bullying her. It has the unfortunate side effect of making her look even more like a "witch", which was what got her bullied in the first place.
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[[folder:Comic Books]]
* In ''ComicBook/AstroCity'', The Confessor is a sort of Batman expy with clerical motifs who is a vampire and in life was a priest. He did something evil once and so as penance wears a crucifix even though as a vampire it causes him pain.
* Marvel Comics' post-Civil War member of the Thunderbolts, ''named'' Penance, wears a suit made of spikes that charges his pain-based superpowers. Originally, he was the FunPersonified hero Speedball who changed his identity after he thought he had caused an explosion that killed hundreds of people. Even after it was revealed that it wasn't his fault, he kept the suit, and seemed to fall into parody DarkerAndEdgier territory.
* Occasionally done in ''TheBeano'' and ''ComicBook/TheDandy'' in the 1950s-1980s with characters slippering (In these two comics it was common for an ending of a strip to involve the character being beaten on their behind with a slipper for their misdeeds) themselves instead of their parents or other authority figure doing it.
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[[folder:Film]]
* In the movie ''The Mission'', Captain Mendoza kills his brother in a sword duel, and realizes [[MyGodWhatHaveIDone what he has done to so many Guarani natives]]. He spends the next 10 minutes climbing up a waterfall with 50 kg of heavy armor tied to his back. Father Gabriel watches him, decides he has atoned for his sins, and makes him a Jesuit missionary.
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[[folder:Literature]]
* ''TheScarletLetter'' was borne by the book's female lead, Hester Prynne, for her adulterous dalliance with Arthur Dimmesdale, who self-flagellates for his own sins.
* OlderThanPrint: Several stories about Sir Gawain, one of the Knights of the [[KingArthur Round Table]], involve a version of this in which he wears some clothing or marks his shield as a mark of shame, and as a nice gesture, the other knights adopt the same marker. One version has him doing this after accidentally killing a woman and in the romance ''Sir Gawain and the Green Knight'' he does this to atone for cowardly behavior.
* Another old example is in ''Literature/TheRimeOfTheAncientMariner'', where he wears the dead albatross around his neck and is compelled to tell his story in order to atone.
* For a non-voluntary example, the Remade of ''PerdidoStreetStation'' and other books in that universe.
* One LMMontgomery short story talks about a lighthearted young woman who believes that she has accidentally killed her responsible older sister by a drug overdose; the young woman spends fourteen years abstaining from all the things she loves (like music, parties, and the man she's in love with) and dedicates herself to as much hardship and work as she can, to do penance.
* The book ''{{Atonement}}'' ''is'' this trope - Briony writes the book after she grows up to attempt to atone for her sins.
* Silas in ''TheDaVinciCode'' repeatedly whips himself, wears a leg bracelet that's made of barbed wire that digs into his leg, and a whole bunch of other painful things to apparently atone for killing the people he kills over the course of the book. Subverted, as he's a bad guy.
* Aes Sedai in ''TheWheelOfTime'' series will assign themselves a Penance for transgressions of White Tower law or custom. This can range from performing menial tasks better suited to lower ranked Novices to corporal punishment a la [[AuthorAppeal spanking]]. Egwene manages to treat her [[spoiler:capture by Elaida and subsequent attempts to break her spirit, thereby breaking the rebellion]] as a form of Penance.
* ''Literature/Literature/VorkosiganSaga'': At one time Miles Vorkosigan sentenced an infanticide to have her property rights stripped away and be considered legally dead as an alternative to hanging. The book seems to have some pity for her as she was caught offguard by changing times, but nonetheless she clearly deserved it and it was necessary to give a sharp reminder that disabled people were not to be killed out of hand anymore.
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[[folder:LiveActionTV]]
* ''Series/{{Torchwood}}''. Twice in one episode. In the series 2 finale
** 1). Jack Harkness lets his brother Gray bury him alive for nearly two thousand years because he feels guilt over letting him fall into enemy hands as a child. He even mentions this trope by name in dialogue.
** 2). Jack's ex-partner John, who Gray made bury Jack, joins forces with Torchwood afterwards and subjugated himself to Gray's wrath again.
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[[folder:Poetry]]
* The Alfred Lord Tennyson poem "St. Simeon Stylites" goes into the mind of a Christian saint, [[ExactlyWhatItSaysOnTheTin Simeon Stylites]], who sat on a high pillar for ''thirty-seven years'' to atone for his sins. Subverted, however, in that the poem more than implies that Simeon's gesture is founded out of pride just as much as out of guilt.
--> "Have mercy, mercy, wash away my sin."
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[[folder:VideoGames]]
* The Arbiter from {{VideoGame/Halo}} does this. After being held responsible for the destruction of the titular setting in the first game, he's branded with a mark of shame in the involuntary variety.
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[[folder:RealLife]]
* TruthInTelevision: many RealLife societies have inflicted punishments such as branding, tattooing, severing of limbs, etc., all for the purpose of stigmatizing criminals. Some still do.
* {{Inverted}} by a [[http://www.inquisitr.com/155392/former-white-supremacist-turns-his-back-on-hate-has-face-tattoos-painfully-removed/ former white supremacist]] who went through the very painful process of having his racist face tattoos removed.
* Catholicism still recommends some sort of mild punishment as another way to observe Lent (let's say for example, depriving oneself from his or her favourite dessert or TV show or wearing very modest clothing).
* The traditional folk-punishment for suspected wifebeaters in the South was "the rough music" meaning to gather around his house and clang pots and pans or other noisy implements until he became so exasperated as to leave town.
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