LIP BITING
Introduction: Defining Lip Biting Lip biting, recognized scientifically as a form of self-injurious behavior or body-focused repetitive behavior (BFRB), is a common, often involuntary, habitual action. This compulsion involves the persistent and repetitive biting, chewing, or sucking on the inner or outer surfaces of the lips. Historically, and as noted in early psychological observations, lip […]