Kidneys aren’t really that bad. In fact anything in a surgical setting is usually very tolerable. I think it’s cause it’s relatively clean, ordered, the person is knocked out, and you know everything is gonna be fine.

What’s nasty is gore from accidents. Now of the person is totally knocked out or dead I can handle a lot without too much issue. I still get grossed out, especially with extreme head trauma, but mostly fine. What gets me is when the person is fully conscious and reacting to what ever horrible thing has happened to them. Things like trying to gather their organs back into their body and limbs mangled well beyond hope of rehabilitation.

The thing that kills me more than anything else though is face degloving/removal and the person just has to deal with that fully aware. This usually happens cause of high speed accidents or dog attacks. its actually amazing how the entire face can be removed in one piece with no further damage to the rest of the head. They are just stuck screaming, bleeding like crazy, probably crying but it’s hard to tell. They will have their teeth fully exposed along with the eyes cause they can’t blink. They just have to wait patiently like that for the emergency personnel to arrive, put them on drugs, gather their face up, and hope the subsequent operations work out well for them.