UPDATE* Blackhead-like Bump in the pubic area, what is it?

I've had this thing for a while. I don't really remember when I first noticed it but it's been a few years now, I've had it much before I first had sex, so I know it couldn't be anything infectious (I've been tested) It doesn't hurt or irritate at all. It kinda feels like a pimple and the top of it is black and it's pretty solid. Like it's clogged or something.  I often think it's a cluster of ingrown hair maybe, as I don't really shave down there but I get more curious about it the more I notice it. Any idea of what it is?

I included a picture. It didn't have that option at first for some reason

It looks as though it could be a mole. If you have had it for a few years have you not asked a doctor? (I assume to get an STD test you have to go to a medical facility.) Always best to get things like that looked at as there are different sorts of growths that form. Some are harmless; some are not. For your peace of mind best to get it checked.

It looks like a "halo naevus". because of the white ring which resembles a halo.    These are usually benign and dont cause any problems,so dont pick at it.         However  for peace of mind do get it checked by a doctor.