What can cause someone to have dierea while they r having sex?

Well: Is it persistent or did it just happen? That's tough but the stool must be lose anyway, there is anal incontince, possible, but generally doesn't happen just with sex. Anxiety and irrtible bowel? I'm reaching, try some immodium d if acute peroblem or even chronic, a drug called wellchol can help diarrhea but may consider GI for better opinion. Gd luc.