Gangrene of the penis by strangulation with a metallic ring is a rare urologic emergency where preservation of urological function is the main priority. We present a case of a psychotic patient referred to the emergency department. We describe the medical and surgical management of this case. 8. Vijayan P (2009) Gangrene of the penis in a diabetic male with multiple amputations and follow up. Indian J Urol 25: 123-125.