Tubal obstruction is the main cause of female infertility, accounting for 25% to 35% of female infertility, while the main cause of tubal damage is pelvic inflammatory disease (PID). The incidence of secondary tubal obstruction is directly related to the incidence of PID. Fertility after tubal reversal depends on the site and extent of tubal injury. Women with extensive tubal damage have a lower chance of pregnancy, and in vitro fertilization (IVF) can improve their conception rate. Miao Jie, Department of Radiology, Beijing Maternity Hospital Etiology: 1. Infection Most tubal disease is secondary to infection, especially pelvic inflammatory disease (PID). 2. Inflammation/adhesion Tissue trauma caused by surgical procedures can also lead to a pre-inflammatory state or even adhesions. The incidence of postoperative adhesions is about 75%, and laparoscopy cannot prevent the sequelae of adhesions. Prevention: 1, pay attention to the cleanliness of the reproductive system, prevention of various pathogens (especially sexually transmitted diseases) infection is the most critical, abortion, childbirth, removal and placement of intrauterine devices, and other uterine surgery, should be strictly sterilized, avoid inappropriate uterine cavity operations, avoid unclean sex, avoid menstrual intercourse, repeated tubal lavage, etc. 2.Actively eradicate tuberculosis and lymphatic tuberculosis to prevent infection with pelvic tuberculosis. 3, once a woman suffers from adnexal disease, she should abide by the principles of treatment, adopt a positive attitude, treat thoroughly, control the disease as soon as possible and prevent it from turning chronic. 4.Strengthen exercise to enhance the ability to resist disease. Diet and health care 1.More light food, pay attention to the regular diet. 2, according to the doctor’s advice reasonable diet. 3, the disease on the diet is not too big contraindications, reasonable diet can be.