Abstract
Trichotillomania and pathological skin picking have long been viewed as obsessive–compulsive spectrum disorders. Now known as Trichotillomania (Hair-Pulling Disorder) and Excoriation (Skin-Picking) Disorder, both are included in the OCD and Related Disorders section in DSM-5. This chapter briefly focuses on prevalence, phenomenology, and etiology of these disorders. Cognitive behavioral mechanisms and empirically supported cognitive behavioral treatments are explained in detail, including habit reversal training (HRT) and stimulus control, as well as augmenting strategies from acceptance and commitment therapy (ACT) to dialectical behavior therapy (DBT). Finally, the application of treatment principles is highlighted with a case presentation.
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