While I was hard today, I felt a pain on the head of my penis. At first I thought I contracted a disease or something but I'm not sexually active at all. Upon inspection, I found that there is a cut, or crack, on the head about a millimeter long. I have also slightly nipped my frenulum (I'm uncut) and it seemed to heal pretty well within a week. Also that seems pretty common for uncut guys. Well, I've never heard of a cut on the head. I'm pretty scared and I don't want anything bad to happen to it. I do frequently masturbate about 1-2 times a day but thats all. I need some help please. Thanks anyways!