I am scared.. I am 18.. I have a lump on the very tip of my head on the right side of the hole, I am worried it could be penile canser.. My frend told me that she watched a show about some teenager, and he had a lump on his penis, and he was worried, so he went to the doctor and the doc told him to stop masterbating so much, I have been masterbating 2 times a day for a looooong time, and there was a while were I was doing it HARD 3 times a day.. I am worryed that it might be cancer, because 2-3 times a day doesnt seem like much :-( Please respond