Vasectomy is an effective, permanent form of contraception. It can be performed under local or general anaesthesia and patients can go home soon after the procedure. It involves a small incision on either side of the scrotum and the removal of a short segment of the vas deferens, thereby preventing sperm from entering the seminal fluid. Alternative contraception still needs to be utilised until the sperm count becomes zero, which usually occurs several weeks after the procedure.