Dermatotillomania; Skin-picking disorder
Excoriation or skin-picking disorder refers to an obsessive-compulsive related disorder in which there is recurrent picking, rubbing, squeezing, lancing, or biting of one’s own skin that causes skin lesions, despite repeated attempts to decrease or stop the behavior. Excoriation disorder must be differentiated from skin picking that occurs in substance use (e.g., cocaine), medical conditions (e.g., scabies), and other psychiatric diagnoses including delusions or tactile hallucinations, contamination obsessions in OCD, stereotypic movement disorder, self-injurious behavior, and factitious disorder.
Excoriation disorder is classified with the Obsessive-Compulsive and Related Disorders in the Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5; American Psychiatric Association 2013).
Development and Course
It is estimated that excoriation disorder occurs in 1.4–5.4% of the US...