Body-focused repetitive behaviors (BFRBs) include any repetitive self-grooming behavior that involves biting, pulling, picking, or scraping one’s own hair, skin, lips, cheeks, or nails that can lead to physical damage to the body and have been met with multiple attempts to stop or decrease the behavior.
Common BFRBs include hair pulling, skin picking, nail biting, and cheek biting. Other body-focused repetitive behaviors include hair eating, nail picking, skin biting, lip biting, tongue chewing, and hair cutting.