There are several dry bumps that surround my elbows. Sometimes I forget they are there (they don t hurt, itch, or have any color) and subconsciously pick at them, which just results in a tiny bit of blood. I know that I shouldn t pick at them and I rarely ever do. Any idea what they might be or what causes them? There are two on my left arm and five on my right; the ones on my right arm are bigger and they appear on the bottom of my arm.