Ok, here's the deal, I didn't notice this until a few years ago, and i'm not sure how long i've had it, but it's a brown spot less than a centemetre down and to the right of my urethral opening (right if you're facing it, and i'm not sure if it's called the urethral opening, but i'm pretty sure it is, to put it simply, the hole that the pee comes out). Anyways, i've never had it checked out, and it isn't painful or anything, it doesn't have any specific texture or hardness to it at all, it's just a change in colour, and it's the only one. I'm not worried about it at all really, i'm just wondering what it might be. I am a virgin, so i'm not worried about it being an std (or sti, whatever they're calling them now) but just wondering what it might be.