Well, this is an intriguing topic. I don't know about the orgasm thing but I do know that any sexual activity seems to make my cramping and soreness in abdomen worse for a day or so. I do think that it is a common thing though, maybe we are just too naive to discuss this subject at length. I do know that I abstain if I am having a rough IBS day anyway, and who the heck feels like it anyway on those days. I, being of the weaker sex (no pun intended) do think that it would probably cause more discomfort for the ladies, but not having experienced the other side of the coin, I could be mistaken. It just makes sense to me that any internal stimulation could intensify any IBS symptoms for the girls. Let's hear for the boys! Enlighten me.