In episode 4 season 2 it shows a cat being eaten

No DOG dies, a cat does, and there is a different space for that on this list.

Before the rats explode, they are seen and heard in extreme pain and writhing around.

Spiders and a butterfly in season 2 episode 7.

near the end of s1ep5 there's a dying deer crying out it seems it was hit by a car and left to agonize, they were gonna shoot it to put the poor thing out of its misery but something quickly snatches it away, it's obviously computerized but still realist and painful to watch. Highkey upset that no one mentioned this before and that I had to see it myself

s2e4 around 41:25 there is a dead cat being eaten by a monster. it is graphic.

No horses are seen, as far as I know. There is a deer that is seen injured, however, and it is grabbed by a creature. We later see the creature eating something, which is presumably the deer.

There's snake-like vines in the upside-down, but no actual snakes

Yes. When Axel is threatening Eleven, Kali makes him see spiders

Not a dragon but a monster.

A character happens upon a pool party and takes some voyeuristic photos of other characters at the party.

Season one a kid's mother keeps being told she is crazy by the community, and in season three, a woman is repeatedly told she's imagining things by the men at her workplace and her boyfriend

S3E6: a brief memory around minute 49. A husband is shown yelling at his wife accusing her of cheating. The wife throws plates, and a child tries to intervene. The husband is verbally abusive toward the wife, pushes the child out of the way, and punches his wife in the face. These same memories are shown quickly in the middle of S3E8.

S3E6: a brief memory around minute 49 of a father being verbally abusive and pushing his son out of the way in order to hit his wife. These same memories are shown quickly in the middle of S3E8.

Hopper is shown abusing alcohol and has a history of abusing the drug Tuinal (depicted in previous seasons but not this one).

There's an allusion to Hopper's former drug addiction. S3E6 involves two characters being injected with drugs while captured. They end up vomiting in a bathroom but are ultimately fine.

A boys father is an alcoholic, and it’s hinted at that one of the characters is as well

Season 2 shows flashbacks of children and a girl's mom being tortured.

imo the monster in season 3 (the mind flayer) is extremely gorey. it’s made up of the insides of rats and humans (which are both shown dying VERY graphically). it’s by far the most gorey season and it made me feel uneasy at a lot of parts.

S3E8: There is a close-up shot of a character's leg being sliced open with a knife.

No, but Dustin has CCD and is missing some teeth.

A monster is burnt alive, but does not die.

There's no cannibalism in the sense of eating members of the same species, but some monsters eat people.

Brains are exploded. The head(s) remains in tact.

Nope. However many scenes of burning, torture attempts, shootouts, ect.

And the mayor almost has his finger cut off with a cigar cutter

In season 3, Billy grabs El by the neck and holds her up, but I wouldn't consider it a "hanging".

Billy holds Eleven into the air by the neck in S3E6, which causes her to choke

A boy becomes possessed by a supernatural being. When a part of this supernatural being is burnt with a flamethrower, the boy is thrown onto the ground and starts to have a seizure.

Steve is beaten and sustains some facial injuries. He develops a nasty black eye, and his eyeballs end up pretty bloodshot. His eyes are never stabbed, etc.

Eleven breaks a kids arm in season one, because he was bullying Mike and Dustin. It is not that graphic, he just screams Ah! She broke my arm! Let's get out of here!"

in season one, mike nearly falls to his death, but is saved by eleven. i feel this should still be mentioned, since it's a very scary, suspenseful scene.

Barbara is a teenager, who is killed and harvested by the Demogorgan

She thinks about it, but backs out.

the russian base sequence might be a bit much if you have trouble with kidnapping/being caught and trapped

Not exactly a toy, and it's the owner of the item that chooses to destroy it, but early in season 3 Will destroys his "Castle Byers" fort.

A character named Bob who's introduced in the second season dies in episode 8 of the same season. He was dating Joyce, so he acted as a pseudo-father for Will and Jonathon. The death is graphically shown on screen.

The deer scene is definitely a jumpscare.

season 3, at the fourth of july fair

No ghosts of the dead, but a kid is possessed by another living entity in season 2

I don't quite remember what episode but there was a part where Billy and Steve were talking while taking a shower at the school.

This is a major theme in season two and even more in season three.

In season one, Eleven uses her mind powers to make a boy wet himself.

The most notable instance of audio gore I can think of is when Eleven's leg is injured in Season 3.

At the end of season 1 in the basement Lucas sings a tune about how Dustin farted

In one of the last episodes, Steve and Robin throw up into movie theatre toilets after being drugged.

The Hawkins Police Department are somewhat prominent, although the only notable character among them is Hopper who while a “good guy” is more of a grizzled anti-hero type. Not sure how to answer this one though since it’s a work that doesn’t really have strong opinions on police one way or the other.

multiple times throughout the three seasons

El’s mother is shown to have been tortured with electro-therapy to the point of being permanently catatonic

Near the end of season 2 a needle is jammed into the neck of a character in self defense. The character is knocked out but does not die.

Not a mental institution, but a schizophrenic person is taken by ambulance and hospitalized

I would add to the other comment that in the final episode, a child is shown, via flashbacks, in the final stages of cancer and going into cardiac arrest in the hospital.

Eleven appears to be having anxiety attacks several times after she rips off her blindfold

A few characters in season one cut, but not for self harm. They are using blood to attract a creature

In season 2 episode 2, while trick or treating, Lucas says “If I get another 3 Musketeers (chocolate bar) I’m gonna kill myself” though it is clearly in a joking manner.

ms driscoll in season 3 acts violent when she is taken to the hospital S3EP4

There isn’t specific body dysmorphia but the character eleven talks about not being pretty and wishing that she looked more like a girl. She goes through a transformation scene where she puts on a dress and wig.

in s1 episode two eleven is show being put in a confined space and crying, and also in a closet. i feel like those count...

You could somewhat argue that characters like Will are bullied for autism-related traits but other than that not really

Fake suicide - although the characters believe somebody killed themself, the audience knows it was murder

No but people do body shame barbe in the first few episodes of the first season

literally almost every episode

in episode 2 billy has a fairly lengthy scene with shakey cam

S2 Episode 5 at around 47:30 a newborn baby is heard and shown crying. It's shown for less than ten seconds but it occurs like 20 seconds after the first time. At 49:50, the scene is repeated a couple of times

Terry Ives (A.K.A Eleven's mother), introduced mostly in season 2, is told to have had a miscarriage, when really they stole Eleven/Jane from her because of Eleven's mind powers.

She doesn't die, but does end up being permanently catatonic sometime after she has had her baby.

Terry Ives (A.K.A Eleven's mother), introduced mostly in season 2, is told to have had a miscarriage, when really they stole Eleven/Jane from her because of Eleven's mind powers. It is not an abortion but a miscarriage.

There is childbirth in season 2

There aren’t any n-words but there is racial conflict which results in a white character attacking a black character.

sorta, initially eleven is thought to be a boy by several people. it's never malicious though

billy's dad calls him a f*ggot. there are also racist implications in his actions; he tries to keep max away from lucas, and no reason is given other than the implication that it's because he's dark-skinned. (props to the brothers for making a realistic central indiana from the 80's, i guess.) not to mention that in the very first episode, the bullies make fun of lucas's race by calling him midnight.

While Robin, who is revealed late in season 3 to be a lesbian, is seriously imperiled and tortured/drugged, she survives and recovers.

Episode 1 Season 3 around 19 minutes, the lifeguard yells and calls a kid lard ass

there are multiple uses of the ableist slur "ps*cho", and ableism towards a woman alleged to be schizophrenic

The f slur is used twice- once in S1E1 when a character is quoting someone else, and once in S2 when a boy's father is berating him.

There isn't antisemitism, but a character who is experimented on has a shaved head and a tattoo of a number on her arm, which are very likely allusions to Josef Mengele's experiments during the Holocaust.

The only major deaths in the series so far have been white characters, as far as I know - Benny (the guy who owns the diner that took Eleven in) is the first known death.

Mild references to sexual content

I don't understand the 'yes' votes here.

While no one is outright sexually assaulted, there is a scene near the end of episode 2 which greatly resembles sexual assault, using common stock phrases used in sexual assault scenes. People who are triggered by this may be just as bothered by this imagery

the ending had me crying even in the parts that were supposed to make you feel acceptance over what had happened so if you really cant deal with sad endings(i usually never cry at movies/tv) then id say it isnt for you

S2:E1 Hopper claims a story is fake by comparing it to the story about 'the fat man with the beard who climbs down chimneys'

First episode, Billy crashes his car while on his way to the motel. I believe seventh episode Eleven throws a car towards Russians about to attack the gang. Finally, the scoops troop slams into Billy’s car while he’s about to run into Nancy and the rest in the car.

4th season teaser shows a plane crash but i know that wont happen for a while

Technically. Eleven uses her powers to lift a parked vehicle into the air and throw it at several enemies.

Throughout the show, Nancy Wheeler uses guns to defeat monsters. There's a scene in season one where she and Jonathan practice shooting to prepare for a fight against a monster.

The main monster of season 3 is almost literally made out of gore. Also, several rats and humans explode. It’s extremely nasty

S3E3: A character is shown gasping for air after her head shoots up from a bathtub. S3E6: The character in the bathtub is shown again. A character is thrown back onto the beach by a wave and coughs out water.