small bump-like sore on my penis

Hi guys, when i was really young i remember having a sore on my penis, and being the naive child that i was, i picked it and now, years later, its like a small fleshy bump probably about 2 mm long. it causes no pain and so im not too worried.. it's just a bit embarrassing so i'd like to know what it is if that'd be possible. thanks for any help :D