Skin picking in patients with obesity: Associations with impulsiveness and self-harm

Previous studies suggest elevated prevalence rates of skin picking and self-harm in patients with obesity compared to individuals in the general population. Hence, further studies should investigate prevalence rates and correlates of skin picking in this population - especially its differentiation to self-harm. Skin picking and obesity are both associated with specific facets of impulsiveness. This relation should be explored to shed light on potentially shared mechanisms in etiology. Therefore, the present study examined the occurrence of skin picking and its associations with impulsiveness and self-harm in a sample of pre-bariatric surgery patients with obesity class II/III. Within the routine preoperative psychiatric evaluation, a total of 139 bariatric surgery candidates (78% female, BMI range 35-69) completed a self-report questionnaire assessing sociodemographic variables, anxiety, depression, self-harm, impulsiveness, and skin picking severity (urges: frequency, intensity, controllability; behavior: frequency, intensity, controllability; resistance, emotional distress, impairment, and avoidance). Ten participants (7.2% of the sample) reported recurrent skin picking leading to skin damage, repeated attempts to decrease skin picking, and psychosocial impairment (emotional distress, impairment in functional areas, avoidance) due to skin picking. In line with previous findings, skin picking severity shows a medium correlation with attentional impulsiveness. The majority of self-harm types were not associated with skin picking severity. The current study reveals a high occurrence of skin picking compared to the general population. The results indicate an association between skin picking severity and attentional impulsiveness. Further research is needed to investigate the differentiation of skin picking and self-harm in more detail.