Urologists: What Do They Do? Urologists are medical doctors who specialize in diseases of the urinary tract and male reproductive system. These doctors have completed four years of medical school, three to seven years of residency training, and at least…
How Birth Control and Sterilization Works How birth control and sterilization works. Birth control, like sterilization, is a way for men and women to prevent pregnancy. There are many different methods of birth control; some types also protect against sexually transmitted diseases or STDs. Sterilization…