The other night I was masturbating and had to pee. I got up to pee and when I came back to my room to continue I immediately noticed a painful red bump on the shaft of my penis. I have a lot of hair in that area, even some actually growing out of the shaft. This bump as I said before, just popped up all of a sudden.

My question is, is this an ingrown hair, or something else? I really want to think it is because the possibilities give me chills. My theory is maybe, somehow, the way I was handling myself caused a just-emerging hair to stay under the skin, or something like that. I hope I'm not misguided.