Self-injury is a general term that includes many different types of deliberate harm to the body. There are many things that can be considered self-harm. If someone works their body too hard, for example, this can be seen as a mild form of self-injury. In other mild cases, a self-harmer may purposely pick off scabs to keep cuts or scratches from healing. Compulsive hair-pulling (trichotillomania) and compulsive skin-picking (dermotillomania) are impulse control disorders which are also mild forms of self-harm. 