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).

For more information see Body Dysmorphic Disorder (BDD). Skin picking disorder (excoriation disorder/SPD) causes those who suffer from it to continually rub, touch, scratch or pick at their skin. This ...

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 ...