Nail Biting | Onychophagia
Nail biting can occur as a result of anxiety, boredom, or imitating others. It is usually observed in children and progressively reduces in adults. Nail biting can cause skin infections around the nail and may damage teeth.
United States Smithas Dutt Ikhlaqa Choudhary American Academy Of Dermatology Sugham Health Centre Health Square Mohali
Source: medindia.net