If your doctor can’t find a physical cause, it may be in your mind. Some mental conditions give people the urge to scratch or pick at themselves. They may feel like their skin is crawling with something. There is no rash, but there may be skin damage from scratching. Compulsive scratching can be a sign of:
- Depression
- Anxiety
- Obsessive-compulsive disorder
- Psychosis
- Trichotillomania