In Episode 111 a corgi is destroy by the childhood Tomura Shigaraki when he discovers his quirk.

In the manga, not in the tv show

(MANGA SPOILERS) As a child, Himiko Toga killed a bird due to her fascination with blood.

No animal abuse occurs on screen. However, Nezu (a sentient mouse with a Quirk and the principal of the school) was reportedly experimented on in the past, and it caused him to develop a sadistic side (which we see during his fight with Mina and Denki).

Although there is a character called Hound Dog which quirk makes him have the appearance of a rabid dog, he is pretty human and doesn't really fight other dogs.

One episode involves Present Mic getting assaulted by a group of bugs travelling from underground, and they end up covering his entire body. It's not extremely important, so skipping this particular scene is optional.

Yes, in Heros: Rising the character Nine is able to conjure dragons that get killed.

There is a very minor character with snake hair.

In season 4 and in the manga, a drug called "trigger" is produced. It's used to amplify people's powers.

Yes, and it is a centric theme in Vigilantes. In the main series there are villains addicted to smoking and alcohol but it is not a focus.

Yes, a villain in a Yakuza group abuses alcohol.

One of the main characters frequently injuries his fingers, which are shown to be various shades of purple and bent out of shape, causing him pain.

One of the villains gets his fingers cut off off screen

The monster creatures known as Nomu have been burned to death but flame hero endeavor

Todoroki's eye is shown being burned by his mother

No cutting themself, but the Hero Killer Stain uses knifes to cut other people quite a bit.

One of the villains uses his teeth as weapons. His name is Moonfish. They are used to fight and break like knives.

In season 3, a villain named Moonfish is obsessed with consuming flesh, though he's never seen doing so onscreen.

Midoriya Izuku is constantly breaking his bones due to his Quirk. It is a large plot point. Other characters are also frequently getting harmed.

Yes, the character Mr. Compress loses his arm on-screen and the character Tomura Shigaraki loses fingers.

Aizawa is pressed to the ground by a strong enemy holding his head down. He suffers injuries and is ultimately fine, but at the time there is the threat of head squashing.

At one point in season 3, a child punches the protagonist in the genitals. I believe this is the only scene with anything of the sort.

Toya Setsuno was cheated on by his fiance.

A 5 year old boy named Kota lost his parents when they fought against a particularly strong villain.

Deku’s all might toy in ep. 1

Shigaraki’s sister is killed in the manga

It's a big plot point in season 3

endeavor exists

Minetta is a pervert and doesn't exactly "stalk" anyone, but pretty close sometimes.

There are elements of mind control, but no one is possessed per say

At one point, a character does see some sort of apparitions, but they're not really ghosts.

yeah, but i disagree w the person below vv they were pretty sexualized & the male (child) characters are shown to be like really flushed about it

There is an ongoing/common gag where Ochaco laughs and ends up spitting.

There is some audible bone cracking, and there are many screams of pain throughout the series. I'm not sure whether this counts, but as someone who finds it upsetting to hear people suffer, I thought it's worth mentioning.

The protagonist wets himself during the sports festival tournament arc (somewhere between episodes 14 and 25) but it is purely comedic, shown very briefly, and is easy to miss. Apparently, Mineta is also implied to have wet himself at the beginning of the camp arc. I don't remember the latter, but don't doubt it.

Bakugo vomits when he gets punched in the stomach by All Might during the Exams arc. It's definitely not depicted as sparkly rainbows that time, both in the anime and manga. Additionally a younger Todoroki and Shigaraki are seen vomiting in flashbacks.

Kaminari Denki does use his Quirk to electrocute people though

The protagonist is frequently sent to the hospital due to his tendency to break his own bones using his quirk.

Todoroki's mother is kept in the hospital by her abusive husband for mental reasons, but I believe it's a regular hospital, not a mental institution

Himiko Toga uses a syringe while she fights.

y'all PLEASE. body dysmorphia and body horror are NOT the same thing

Several characters’ quirks are dependent on their calorie intake and there are scenes showing them binge eating for that purpose. It’s not a mental health issue for those characters, but watching them eat like that could be triggering for certain people.

No, but theres a scene in the first episode where the character Katsuki Bakugou tells the main character Izuku Midoriya to kill himself

One of the main villains has a tic that results in him scratching his neck. The more upset he gets, the more he scratches. There are a couple shots that show red lines, depicting that he's hurt himself. Though not cutting in the usual way, I'd definitely still be wary.

There are some scenes that greatly resemble anxiety attacks.

Todoroki's abusive father tries to convince him that his mother, whom he drove to madness, was a bad person, and he's protecting him by sending her to the mental ward, even though he's the reason she went mad in the first place.

During the Yakuza ark one of the villains controls the ceiling, walls and floor of a building. I have personally felt this scene to be quite claustrophobic.

Occasionally used as first person POV to show a character looking around during a high tension scene.

Yes and no, because according to Japanese standards for anime, all strobe-like effects that have the potential to cause seizure already have a seizure filter over them.

Deku, episode 1. “One too many toe bones”

There is a brief repeated detail of the first baby being born with a Quirk, but it doesn't show any actual childbirth, you just see the baby in the hospital

There are no actual sex scenes or anything like that, but I'm going to count fan-service as sexual content

Minoru Mineta regularly sexually harasses his female classmates-he makes inappropriate comments about them, tries to peep on them whenever possible, and has groped them more than once. Unsurprisingly, a LOT of people hate him, and what doesn't help is that it's played for laughs and he hasn't been expelled for his behavior (yet).

In the manga there is a group that is compared to the KKK and discriminates against people with mutant quirks.

As of now no black characters have died in the series.

Quirkless people are heavily discriminated against by most of society.

In the 4th Season, Red Riot makes His Work study with "The BMI Hero: Fat Gum" whose Quirk is called fat absorbtion. He's a great guy, but it might be offensive

The character Magne, a trans women, is killed in a violent way. The villain Overhaul uses his quirk on her, which makes her explode in a bloody way.

Police men and detectives play a huge role in the show and are often seen helping the heroes behind the scenes.

A villain misgenders a trans female character, though her allies do correct the villain in question.

Neither the anime nor the manga have finished airing yet.

No, but during a filler episode in season five a plane with only two passengers (Uraraka and a passed out villain) almost crashes

In the manga a villain is dropped from the sky and falls too their death in a fight

Chapter 160 of the manga

Between Todoroki's parents

Todoroki was put through very harsh training as a child, and at one point his mother threw boiling water at him. This has affected him greatly, even as a teenager. Also worth noting: in the manga, a major villain (Overhaul) abuses a 6-year old girl while posing as her "father" figure.

All Might coughs up blood often due to respiratory issues gained from a fight he was in.

In season 3, the villain Mustard uses a gun against Kendou and Tetsutetsu

There is a risk of drowning during the USJ arc of season 1, but nobody actually drowns.

Yes, the character Re-Destro's lungs are injured by Edgeshot, Shemage attacks someone's lungs with fungal spores, and All For One pulls out one of Best Jeanist's lungs.

MANGA SPOILERS /// 290 onwards In the manga Hawks prevents a near car crash although it doesn't crash it can be upsetting to see. In chapter 311 ? I wanna say All Might almost crashes his car but gets out in time before he crashes and then is attacked.