Vasectomy, or male sterilization, has been an accepted method of contraception in Korea since the end of 1962 because it is effective, safe, simple, and inexpensive. By the end of 1978, about 420,000 men were voluntarily vasectomized through the government free-service program. It is estimated that an additional 180,000 men underwent the procedure at their own expense through private practitioners in this country (Lee, 1976). The use of vasectomy for contraceptive purposes has grown rapidly not only in Korea, but in other parts of the world as well. Ravenholt has estimated that about 20 million men are using vasectomy, and this number is expected to double by 1985 (Green, 1978). To meet the in-creasing demands of the procedure, a worldwide evaluation of various aspects of vasectomy and a standardized guide directory are needed for high- quality vasectomies and vasovasostomy services.