I been dealing with these bumps near my upper butt crack but not on the crack it self may ml away from it but very close to upper crack. They come and go same place every time it comes.... This has been going on for years. I first notice when I was 14 I'm know 36yrs. When I first notice it, in that area it burns and itch like my butt crack is split then when I touch it is wet and It's cluster bumps that a close together filled with fluids in them.