I'm awfully worried. I have a dark spot on the head of my penis and its been there for a while now. I am thinking its a bruise from masturbating too hard but my research has told me that usually goes away in 3 weeks. Its been about 6 months now. I've been regularly masturbating though so maybe it hasn't been going away because I've continued to affect it? I need help please, what should I do? I have not had sex, i'm only 16, will this heal???