A dad shave his son's face in a barber shop scenario, no blood or anything

Palm ritualistic cutting

One of the main characters has the letter H carved into his stomach. Some people are saying it isn't bad but there's blood and it's beyond just a scratch and the kid is very (understandably) distressed while it's happening.

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

Hannah Baker is seen cutting herself.

One of the girls you can date, Yuri, self-harms with knives. This is made plainly evident in the second playthrough of the game, whereas it's only alluded to in the first (it's in this playthrough that, if the player pursues her, there is a scene where the player character accidentally cuts his finger with one of Yuri's knives).

a character very gruesomely slices at their own neck with what looks like piano wire.

At the beginning a kid is seen cutting their hand for the pact they make using glass. A character at the beginning also is scene in a tub with a razor blade near him and later seen dead with blood dripping - the actual cutting is not shown on screen. Another character near the end is is having words curved into his stomach by IT though these go away due to being a (painful) hallucination.

Throats are cut.

We see a razor blade being used to shave the fuzz off of a peach. There is also a fight involving a knife so we people getting cuts from it.

There's a part where the character Jack Noir cuts his palm to show the character Karkat they have the same blood colour. There's also a part where the character Gamzee drags a large set of claws across his face in a fit of insanity, leaving prominent scars for the rest of the comic.

The primary weapon of the movie is shears, they are used commonly, and the viscera of their sound and appearance is emphasized.

Very graphic during the torture scene, but it's slow so you can safely look away if it becomes too much. There is nothing sudden that will take you by surprise.

throughout all seasons of the show there are scenes of characters cutting their palms or firearms for rituals, spells, ad sigils. The cuts are not often shown explicitly on camera and I the later season are healed quickly by Castiel. There are a few scenes of Castiel with larger cuts. One scene shows a sigil cut into his chest, and another shows a message carved into his chest by another character. Almost every character ends up with a cut at some point, most often from violence from a monster or another character.

Beth cuts her wrist in season 2

A person is repeatedly cut with a machete.

A character shaves their face but there is no blood.

Steven shaves a single chin hair at the very beginning of "Reunited".

Todd is a barber.

Aang is shown shaving his hair somewhere towards the end of the final season.

Jules is seen cutting her wrist

While this episode does not directly deal with self harm season 5 episode 8 was extremely triggering as the interns practice sutures on each other’s wrists and some of the doctors believe they are engaging in self harm and the interns behave in many ways that were similar to such and extremely triggering as someone who had a history with that.

Everything from preparing human meat, to surgery to filleting a woman. Some shown, some not-

Yes, graphic. Cannibalism

Meredith shaves her entire head during the lice episode.

This movie is about an autopsy, which is shown on screen. There is cutting with scalpels, a bone saw, etc.

You can shear the wool from sheep

Murder House (season 1) contains graphic scenes of Violet self-harming.

A character is shown cutting her wrist.