[Case of self mutilation of urethra in a Munchausen's syndrome patient].

A 33-year-old man presented with urethral bleeding and syncope. Urethroscopy revealed erosive lesion with bleeding at bulbar urethra. Magnetic resonance imaging, biopsy, and blood examination were performed, but the cause of urethral bleeding was not identified. By accident, chopsticks with blood ware detected in his ward. It was revealed that urethral bleeding was caused by self-mutilation with chopsticks. He consulted a psychiatrist, and was diagnosed with 'munchausen's syndrome'.