Honestly, I think a lot of guys simply don't "get" the difference between their junk and ours. While men tend to battle nerve issues, we have the added "bonus" of mucous membranes to contend with. And the direct effect of hormones on that. I definitely know that certain times of the month (ie right before my period starts and for the first few days, at least) that I'm more likely to have issues with my saddle. I've had zero luck with all 3 menstrual cups I have tried, so then I have the extra issue of a raspy tampon string all up in my stuff. Guys just don't get it and a lot are downright skeeved-out by it. Not my DH, but I think he's less weirded-out by these things because I'm completely open about my issues (plus have a long history of reproductive miseries, so my privates have always sorta been on his radar, heh).