AbstractBackgroundDysmorphic concern is an overconcern with an imagined or slight defect in physical appearance that can be a symptom of body dysmorphic disorder (BDD). Appearance‐related concerns are frequently reported by people with dermatological conditions. However, relatively little remains known about the relationship between dysmorphic concern and other variables within persons with different skin conditions.ObjectivesThe aim of this multicentre, cross‐sectional study was to investigate gender differences regarding dysmorphic concern and the prevalence of BDD in a large sample of patients with skin conditions, in relation to sociodemographic, clinical and psychological variables.MethodsParticipants aged ≥18 years with skin conditions were consecutively enrolled in dermatological clinics of 22 European centres. Dysmorphic concern and the possible presence of BDD were measured using the Dysmorphic Concern Questionnaire (DCQ) and compared between men and women in relation to sociodemographic, clinical and psychological variables, and separately for each skin condition.ResultsThe DCQ questionnaire was completed by 5290 dermatological patients. In all categories, mean scores were significantly higher in women than in men. Mean DCQ scores were also higher in women for most skin conditions, with the highest effect size in vitiligo. The percentage of patients who screened positive for BDD on the DCQ was 10.5%, 7.7% of men and 12.7% of women. The prevalence of BDD positive was 6.9% in patients with mild clinical severity, 11.1% for moderate and 19.1% for severe condition. In the multivariate model in patients with mild skin condition, the presence of BDD was positively associated with stress and stigma both in men and in women.ConclusionsDysmorphic concern and BDD were more frequent in women than in men with skin conditions. Both received and actual stigmatization might have an impact on body‐related concerns, in particular in women, who may be more at risk for sociocultural reasons.