It’s not unusual for people to pick at their skin from time to time – this is a common behavior. But if you notice that picking at your skin is constant or find that you can’t stop doing it even if you try, you might have skin picking disorder called dermatillomania. Are you picking at a scab, or more commonly the skin around your fingernails, until it causes sores, bleeding, or scars? Read on. There are ways your doctor might be able to help you.