Often brushed off as a harmless habit, chronic nail biting is a serious concern rooted in more than just nerves. Discover why ...

The disorders include trichotillomania (compulsive hair pulling), dermatillomania (compulsive skin picking, also called excoriation disorder), and onychophagia (compulsive nail biting).

which is also known as dermatillomania or excoriation disorder. Tallulah shared pictures of her face, including one where she was noticeably sore and red around her mouth and orbital area ...