answer:I gag at mucus mostly. Blood doesn’t really bother me- but vomit does if I smell it, or hear it. I can control it well, though. Mucus or slimy textures, that’s another story. My husband’s trump card, when we play fight, is him pretending to drop a loogie on me. It can be a problem to during more private moments also. I know someone who goes to the hospital everytime any of her kids get hurt because she passes out when she sees their blood. It’s such a struggle for her!