I have developed a bump on the head of my penis. It s a little smaller than the diameter of a pea, slightly raised from the skin, red in color, painless for the most part (although occasionally irritated by rubbing against pants). I think It s possible that I have contracted HPV at some point in time, but I only have the single bump and it has a smooth texture (not cauliflower). I thought perhaps it was a pimple except squeezing it or trying to pop it is completely unsuccessful. I have had it for about a week now and it hasn t seemed to change at all. What could this bump be? (FYI, I m a sexually active 21 year old male)