I have a hard lump under my skin that's almost right in the fold of my skin under my butt and the top of my leg. The diameter is about half an inch. It is discolored, but could be bruising. It's painful when I sit on it directly. I wish I could post a picture. I've had it for months and months. It never oozes anything and it's not going away. It's driving me crazy! I don't have insurance and haven't gone to a doctor, but I might do that soon.