[Prolonged penile strangulation can cause serious problems].

A 45-year-old male fell asleep with a plastic ring around both scrotum and penis after intake of 100 mg of Viagra. He woke up several hours later with pain and oedema of the external genitalia. He was able to cut off the ring, but a concentrically wound around the base of scrotum had already been formed. He went to see a doctor ten days later and was referred to an urological department. The wound was purified and sutured in general anaesthesia, because the cremaster muscle was exposed. The patient was discharged the next day.