Corpus cavernosum rupture or fracture of the penis is an unusual injury caused by blunt trauma. There are few cases reported in the literature and controversy regarding initial conservative versus operative management exists. This experience adds 17 cases and suggests that optimal management be determined by demonstrating the presence or absence of a tunica albuginea rent on corpus cavernosography. If no rent is demonstrated conservative management is recommended. If a rent is present operative management is the treatment of choice.