Not really fall down the stairs. But in season 4 ep 1, Wynonna climbed the stairs and fell down cause she took a step and she thought she'll go in the garden
From where I am, in early season 2, there have been multiple dead rats, mostly for sacrifices, one of which was put in a blender. There was also an extremely gruesome skinned rabbit having its blood drained. I think there might have been a pig death too? Regardless, be aware!! Lots of small mammal death!! I have no idea why other people said NO.
There is one scene where this happens with cannibals and they eat a guy’s you know what. it’s through underwear but there’s a lot of blood and splatters
Waverly gags a bit when Wynonna is making her the “smoothie” in the beginning of the episode but no vomiting until quite later on after Wynonna makes her drink the serum, Waverly projective vomits but it’s just black goo and so over the top and fake looking it didn’t bother me really
There's at least one instance in which someone needs blood to complete a ritual or something so they cut themselves. Not really the same but could still be triggering.
You don't see a car crash but there are a few episodes in a row in which we're lead to think that a character wrecked his car and died or got seriously injured. If you have been traumatized by a car crash in your life, this might be a bit triggering.
One of the demons was a barber when he was alive and slits people’s throats. In S3 E2 (I’m pretty sure) there is a revenant who’s booby trapped his whole house and he lures a young hunter to his house. The hunter walks into an invisible wire and it slices through his neck, almost decapitating him. It was totally unexpected and definitely made me flinch.