Abstract
Several diagnoses in the new DSM-5 chapter on 'Obsessive-Compulsive and Related Disorders' directly relate to psychodermatology. The new excoriation (skin-picking) disorder (SPD) and trichotillomania (TTM) both manifest as recurrent body-focused repetitive behaviors that have compulsive and dissociative features, the latter being more prevalent in TTM than SPD. The DSM-5 refers to SPD and TTM occurring without full awareness or preceding tension, however does not specifically mention the possible role of dissociation. This has important treatment implications, as patients with high dissociative symptoms are not likely to respond to the standard treatments for obsessive-compulsive disorder. Body dysmorphic disorder (BDD), which is frequently associated with cutaneous body image (CBI) dissatisfaction, is present in 9%-15% of dermatology patients. Treatment guidelines in dermatology are increasingly considering the psychosocial morbidity related to CBI in their treatment outcome measures. The presence of BDD, if unrecognized, may therefore directly affect the dermatologic treatment regimens offered to the patient.
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