Tubal effusion reduces the pregnancy and fertility rate of IVF by 50% and increases the miscarriage rate by 2 times. In other words, if the success rate of IVF is 20-30%, the success rate will be 10-15% if there is hydrosalpinx, and the miscarriage rate will increase, so it is crucial to treat hydrosalpinx before IVF treatment. The reasons for this are as follows: 1. The fluid retention in the fallopian tube changes the internal environment of the uterine cavity and mechanically interferes with the contact between the embryo and the endometrium. 2. The microorganisms, debris and toxic substances contained in the fluid in the fallopian tube affect embryo implantation, reducing the embryo implantation rate and pregnancy rate and increasing the miscarriage rate. The cytokines, prostaglandins, leukocyte chemotactic factors and other inflammatory complexes released by the tissue in hydrocele affect the endometrium and embryo implantation. 4. The level of endometrial beta one integrin decreases during the implantation window in patients with hydrosalpinx, which also affects endometrial receptivity. 5. Tubal effusion is often caused by infections, mostly upstream infections, which may cause endometrial damage and leave permanent effects on embryo implantation tolerance. 6. Ultrasound monitoring during IVF treatment may reveal a few tubal effusions with progressive enlargement, which may be mistaken for developing follicles and may lead to misleading medication and early administration of HCG, resulting in a decrease in the rate of mature oocytes during egg retrieval. 7. On the other hand, the fluid in the fallopian tube is mistakenly punctured during ultrasound-monitored transvaginal egg retrieval, and the fluid directly contaminates the oocytes, affecting the fertilization of the oocytes and the development of fertilized eggs. The main methods used are laparoscopic tubal resection, ligation, window opening or ultrasound aspiration. The first two methods involve risks of surgery and anesthesia, and are prone to damage the blood vessels of the ovaries and affect the blood supply to the ovaries. Interventional embolization of tubal effusion can avoid the risks of surgery and anesthesia, and more importantly, it can avoid the impact on the blood supply to the ovaries and prevent the recurrence of tubal pregnancy and tubal effusion, and it is a new and effective treatment method with safe operation, minimal patient pain and short postoperative recovery period.