Bump/growth on my skin in an unfortunate place

I have a small bump/growth on my skin which I had assumed was just a pimple. After it had stuck around far too long for it to be that, I decided to take a closer look at it, which is a lot harder said than done as it is literally right beside my anus... it does not look like a mole, at least not like any of the other moles I have. It is the same colour as my skin as far as I can tell, is about three times the size of the head of a ballpoint pen (can't think of anything else that is fairly uniform and near its size), and there doesn't seem to be any pain or discomfort caused by it.

Does anyone, without me goatseing you, know what this might be?