Factitious disorder in dermatology is a dermatosis occuring with increasing frequency all over the world. Prevalence is reported around 2% in dermatology clinics but it is probably underdiagnosed, since the patient is not usually aware of its self-inflicted nature. When manifested by bullous lesions, it can be confused with autoimmune bullae. We report the case of a 59-year-old patient accompanied by psychiatry...