PURPOSE: Cavernous hemangiomas of the penis are rare benign tumors commonly excised for cosmesis and bleeding. Reports of laser treatment of these lesions with the patient under local anesthesia indicate good functional and cosmetic results. We report our experience with 4 cavernous hemangiomas treated with the neodymium:YAG laser. MATERIALS AND METHODS: Four patients, 8, 16, 31 and 50 years old, had a total of 8 hemangiomas, which were treated with the neodymium:YAG laser at 5 to 15 watts of power for 3-second pulse durations. RESULTS: All patients had excellent cosmetic and functional results. These treatments were done with essentially no blood loss, on an outpatient basis and without complications. CONCLUSIONS: The treatment of choice for hemangiomas of the penis in the pediatric and adult population is neodymium:YAG laser coagulation.