question: I have a small lump in the crease between my leg and scrotum, closer to the scrotum and slightly unerneath. . . It is slightly sensitive to the touch, greasy that has a strange odor not found normally in that area.That area.seems particularly greasy. At times i scratch and pull hairs from the a near that area, and i have seen similar come and go. Ive had the habit of rubbing dead skin and scratching and pulling hairs from the crease for some time- usually when on the toilet. What are these bumps?