It’s not a scientific term though, as in biological or medical one. You can argue the same way for sex being just a natural part of the life cycle, therefore, being sfw.
Apart from body parts, there is plenty of vocab about suicide which I find triggering. It’s not that it’s unsightly, it straight up ruins my mood and current review session. And the conclusion to all previous threads about it was (as op mentioned) pretty much: it’s a part of out life, shut up. Which is duh. It would be nice to have some rigidity gone to allow hiding some stuff.