Hello. A few weeks ago, I developed a small bump on the head of my penis, about the size of a pea, colored dark. I told my father about it and he looked and said it looked like a busted blood vessel, no big deal, it will heal on its own. That was weeks ago, and while the swelling has gone, there is still some discoloration, but not as bad as before. I have no other symptoms; no discharge, no trouble with urination, no excessive itching or any other bumps or lumps. Just this one. I was previously tested for STD s and those came back negative, and I haven t had sex since that test. I am in my early 20 s.