Earlier this morning while I was using the bathroom I noticed a hard lump about the size of a dime near my vagina. My initial thought was that this was a hemorrhoid, but then I assumed it was probably too far from my anus. It's pretty close to where the line of my underwear goes, so I was wondering if maybe it was because my underwear were too tight. For the record I know I don't have any STD's either.

Later I noticed that it seemed like it was between the skin of my labia, because I could place one finger on the inside of my labia and one and the outside and be able to pinch it between my fingers. When it comes to penetrative masturbation I tend to be kind of rough, so I wasn't sure if that could have anything to do with it. It doesn't usually hurt unless I touch it too much or I have on underwear that rub against it, so for now I'm staying in loose boy shorts.

(You can't really see it in the picture, but I posted it anyway so you could tell where it is and how big it is.)