I've recently noticed one small bump "down there". I've searched the web for an answer to what it might be but I need more specific advice before I see a doctor. It is perfectly round, smooth, flesh colored, and painless. It doesn't itch, smell or seem to be growing in size. And most importantly... it isn't exactly on my "vagina". It's almost at the top of my pubic hair-line. The closest explanation I've been able to find is that it could be a sebaceous cyst, but I may have been exposed to HPV. Please help?