I'm 19 years old and for about three years now I've had a bump About the size of a Pencil eraser right between my anus and the opening of my vagina, It is only on one side, I don't remember exactly how it started, However when I first got it I used to be able to pop it like a pimple and it would ooze large amounts of puss and blood, And would fill up again within hours. Then it would quit bothering me for a few months and then it would act up again, It's very sensitive to touch And has two small holes in it that are closed over but are still visible. It feels like there's a lump under the surface of the skin, And I always been too embarrassed to ask anyone