If a man undergoes ligation surgery, the incision is located on both sides of the scrotum, about 1 cm, and the surgery can be completed using local or semi-body anesthesia. The vas deferens is located at the root of the scrotum and can be touched by hand. After feeling the spermatic cord, there is a tough fibrous duct inside the spermatic cord. After fixing this duct, an incision of about 1cm is made on the skin and the vas deferens can be found. The vas deferens is stripped to the outside of the body, ligated and cut off outside the body, and can be put back into the scrotum after checking that there is no bleeding. If there is a requirement for fertility in the future, two more vas deferens can be found in this area for vasectomy, and the patency of the vas deferens can be restored to achieve the purpose of restoring fertility. Compared to women, male sterilization is simpler and has fewer complications.