After completing residency training in 1983, Dr. Doug Stein practiced adult general urology for over 17 years in Tampa, Florida. In 2000, he stopped seeing new general urology patients to devote all his time to vasectomy and vasectomy reversal, eventually providing vasectomy services at up to 21 locations in Florida, many under the federal Title 10 program for low-income men without insurance. In 2010, he began his international vasectomy mission work and has now led 38 vasectomy missions to a variety of countries including the Philippines, Haiti, Kenya, Mexico, and Indonesia. He is the Co-Founder of World Vasectomy Day, the largest annual male-oriented family planning event in history. In addition to training doctors overseas, Dr. Stein has provided individualized training for 155 doctors from 5 continents at his main office in Tampa/Lutz, Florida. He has performed over 45,000 vasectomies and 1900 vasectomy reversals.