Minimally invasive is better for post-ligation recanalization, but the surgical method also depends on the abdominal adhesion situation, general condition of the patient, etc., which can not do minimally invasive can only choose open surgery. Minimally invasive surgery, with the advantages of small abdominal wall incisions, fast postoperative recovery, the tubal diameter of the thinnest part of the tubes can be up to 0.001cm, and has the effect of a magnifying glass. The advantage of open surgery is that you can visually place the reconnected tubes in your hand, and you can feel the softness of the tubes by touching them. If the adhesions are found to be heavier in the previous surgery, then open surgery is recommended. Regardless of the type of surgery, the reopening rate is not 100%, and is related to the type of tubal ligation surgery. Generally, pregnancy can be achieved the following month after surgery, and there is a risk of re-adhesion if pregnancy is not achieved after 3 to 6 months. It is recommended that women who have undergone tubal ligation should visit the Department of Reproductive Medicine if they have any fertility requirements, and choose the method that is suitable for them under the guidance of their specialized doctors.