Tubal ligation is performed mainly by cutting off the isthmus of the fallopian tube. Tubal ligation is usually chosen within three to seven days of menstruation or, in the case of a cesarean section, after intraoperative removal of the fetus and placenta. The methods of tubal ligation include proximal cuffing and cuff ligation. For the proximal core ligation method, the operation is approximately as follows: the isthmus of the fallopian tube, where there is no blood vessel, is selected, the core is ligated and cut off, the proximal end is embedded in the thylakoid and the distal end is free outside the thylakoid, so that the thylakoid is basically undamaged and the blood supply is not affected. The steps of cuff ligation are as follows: lift the plasma membrane of the isthmus with pliers, cut the plasma membrane layer together with the core at the proximal end of the isthmus, clamp the two broken ends of the core, peel off the plasma membrane with pliers and separate it from the core, then ligate the two ends with No. 4 silk, suture the distal plasma membrane layer with No. 1 thread, and fix the exposed broken ends outside the plasma membrane. For tubal ligation, it is generally necessary to do relevant examination before surgery, fasting, routine skin preparation, lumbar anesthesia or epidural anesthesia can be used, postoperative hygiene of the wound area, prohibition of intercourse for half a month, avoid heavy physical effort, do not strain, etc. In conclusion, tubal ligation is generally chosen to cut and ligate the isthmus of the fallopian tube, but the postoperative period may be complicated by abdominal wall hematoma, infection, etc.