Q: Why do blocked fallopian tubes cause infertility? A: The fallopian tubes are a pair of long, flared, curved tubes, one on each side, about 7 to 15 cm long. The normal function of the fallopian tubes plays an extremely important role in conception. It captures the mature eggs from the ovaries into the abdominal cavity and provides a channel for sperm to travel up the tubes to meet the egg for fertilization in the fallopian tube. The rhythmic peristaltic movement of the fallopian tubes carries the pregnant egg to the uterine cavity for implantation. If the fallopian tubes become blocked due to pathology, all of these functions are lost and infertility results. Diseases of the fallopian tubes are an important cause of infertility, accounting for 30-40% of the causes of infertility, with obstruction being the most common cause. Primary tubal blockage: this kind of blockage is extremely rare; 2. Secondary tubal blockage: it is caused by acquired factors (infection, miscarriage, artificial factors, etc.) and is the most important factor causing tubal blockage. Tubal blockage has almost no clinical signs and symptoms, mainly manifesting as infertility, and some patients have chronic abdominal pain. Yao Yuan, Department of Radiological Intervention, Guiyang Maternal and Child Health Hospital Q: How do I know if my fallopian tubes are blocked? A: There are four methods to check tubal blockage: 1. Hysterosalpingography (HSG): it is the most reliable method to diagnose tubal patency; 2. ultrasonography; 3. tubal lavage, also called tubal lavage; 4. laparoscopy; Q: How to treat tubal blockage? A: There are many treatment methods used for tubal blockage, including cone-head catheter tubal recanalization treatment, hysteroscopy, laparoscopy, tubal lavage treatment, herbal treatment, enema treatment, microwave physical therapy and other treatment methods. The following is a brief description of the main treatments for tubal blockage at our hospital. 1. Cone-head catheterization: This is usually used to treat blockages in the interstitial part of the fallopian tubes, the isthmus and the abdomen. It is performed by inserting a tubal catheter through the vagina, cervix, uterus and uterine horn into the fallopian tubes under the direct vision of the doctor through a TV screen under a digital X-ray machine, performing selective tubal imaging, and then inserting an ultra-slip guidewire through the tubal catheter into the fallopian tubes according to the specific site of blockage and the specific situation of the fallopian tubes, and reopening and separating the blocked tubes through the guidewire. Successful tubal recanalization is defined as the ability to recanalize at least one fallopian tube. The success rate of selective tubal insertion is mostly 92-96%. The success rate is about 90% for proximal obstruction and 30% for mid-potty and farther. The pregnancy rate after successful recanalization is 29-47%. The cone-head catheter tubal recanalization was established by the Science and Technology Commission of Guiyang City in 1990, and the radiology department of our hospital has been researching and successfully applying it in clinical practice for many years. It is mainly used to solve the problem of obstruction of the fallopian tubes in women with infertility. 2. Laparoscopic treatment: It is usually used to treat obstruction of the abdomen and umbilicus of the fallopian tubes. The following surgical methods are commonly used: tubal umbilical end and surrounding adhesions separation surgery, tubal ostomy and tubal uterine anastomosis, and the doctor chooses the surgical method according to the patient’s specific situation.