[Bullous dermatitis self-induced].

In three patients, two women aged 37 and 20 years and a man aged 46 years, a blistering skin condition was observed. Histopathological examination of the skin lesions revealed a blister level just beneath the stratum granulosum, which is proof of a friction blister. The patients were suffering from bullous dermatitis artefacta or bullous pathomimia. This is a psychiatric disorder characterised by rubbing skin blisters but denying self-infliction. Early diagnosis is important to prevent unnecessary drug therapy and chronic morbidity. The typical histology supports the doctor in his suspected diagnosis. A supportive and empathic dual disciplinary approach (by somatic physician and psychosocial worker) is recommended, avoiding direct confrontation with the self-inflicted nature of the lesions, and using the 'narrow escape' strategy, avoiding loss of face of the patient.