A 56-year old patient was admitted initially to the Department of Orthopaedic Surgery and Traumatology after self-mutilation of upper-left limb in the form of exarticulation of left wrist and broad injuries of left forearm. Patient was afterwards transferred to the Department of Psychiatry and Psychotherapy. She was diagnosed with recurrent depressive disorder, severe episode with psychotic symptoms. Therefore, the electroconvulsive therapy was carried out. Twelve procedures were performed with good result. Psychopharmacology was continued. Patient's past medical history revealed information about a significant reduction of neuroleptics. Limited contact with the patient and unfamiliarity with individual characteristics of psychosis relapse was the reason why psychotic symptoms were not recognised.