I know somebody here had what was a cyst of some sort that needed to be removed by a doctor.

If I ride in jeans to work, I sometimes get what looks like a large pimple, in the crease between thigh and butt. It's not an in grown hair. I use acne stuff on it and that makes it go away. It doesn't bother me when I ride, just when off the bike. Someday I'll see a doctor about it. They'll probably say, "Don't ride your bike in jeans."

V.