Personality traits and their clinical associations in trichotillomania and skin picking disorder

Abstract Background Despite being discussed in the psychiatric literature for decades, very little is known about personality features associated with trichotillomania and skin picking disorder (known as body focused repetitive behavior disorders, BFRBs); and the contribution of personality traits to their clinical presentations. Aim The present study assessed personality traits in a large and well-characterized sample of adults with either trichotillomania or skin picking disorder or both. Methods Adults (n = 98, aged 18–65 years), with trichotillomania (n = 37), skin picking disorder (n = 32), both trichotillomania and skin picking disorder (n = 10), and controls (n = 19) were enrolled. Participants completed self-report questionnaires to quantify personality (NEO Personality Inventory), as well as extent/severity of picking/pulling symptoms, mood and anxiety, impulsive and perfectionistic tendencies, and neurocognitive functioning. Group differences were characterized and correlations with other measures were examined. Results In comparison to controls, BFRBs had elevated neuroticism scores (p