The clinical phenomenology of skin-picking disorder - Are there any obsessive-compulsive components?

Skin-picking disorder (SPD) is currently conceptualized as a condition related to obsessive-compulsive disorder (OCD). The present study investigated whether the emotional, cognitive, and somatic components of skin-picking episodes align with this conceptual framework.

A total of 134 patients diagnosed with SPD (mean age = 32 years; 84 % female; average symptom duration: 16 years) underwent in-person clinical assessment. Patients were asked to describe what they experienced directly before, during, and after picking their skin.

Patients reported a very strong urge to manipulate their skin, particularly in situations characterized by emotional and/or bodily tension. No obsession-like phenomena preceded the skin-picking episodes. Skin manipulation had an immediately rewarding effect in the majority of patients or induced 'trance-like' states. After terminating a skin-picking episode, negative self-conscious emotions were dominant.

The interview findings do not align with the conceptualization of SPD as an OCD-related disorder. Patients reported no obsession-like symptoms, and their skin-picking behaviors did not serve harm prevention, which is characteristic of compulsions. Instead, the rewarding nature of skin-picking and its function in experiential avoidance suggests an addiction component to this behavior.