| An extremely safe method of birth control, surgical sterilization is also a relatively permanent one. In male sterilization, called a vasectomy, both vas deferens are severed, preventing sperm from reaching the penis. The concept is the same in female sterilization, in which the fallopian tubes are cut so that mature eggs cannot come into contact with sperm. Neither of these procedures affects the patient’s ability to produce sperm or eggs. Side effects are extremely rare. |