>>��Before I start my periods i have noticed that there is a little lump on my vaginal lip. Usually after my period, it goes away completely only to show up for my next period. The lump is not noticeable, but if you press on it there is a little discomfort. I've had one sexual partner and he's never had an STD, neither have I (we were both virgins). Do you have any idea of what this may be??? *I'm worried. Thanx so much.