If tubal blockage has occurred, in order to prevent re-blockage, the following points should be done: First, in the first tubal blockage treatment, choose a regular hospital specialist, regular diagnosis and treatment, strict surgical sterilization, to prevent postoperative infection. Second, if you suffer from vaginitis, cervicitis, pelvic inflammatory disease, timely medical treatment for thorough treatment, do not self-medication or delay treatment, so as to avoid acute inflammatory infection into chronic inflammation. Don’t have frequent abortions or medication abortions. Fourth, pay attention to personal hygiene, do not share hygiene products with others to avoid cross-infection, avoid unclean sex, pay attention to personal hygiene before and after sex, avoid intercourse during menstruation to avoid bacterial infection or other viral infections. Usually pay attention to strengthen the movement, enhance resistance, reduce the chance of disease.