To know whether the fallopian tubes are blocked or not, you can take tubal imaging and tubal fluid test to confirm. Tubal blockage has no obvious clinical symptoms and usually does not cause uncomfortable symptoms, but it can affect pregnancy and can be detected by tubalography. Tubal imaging is performed by placing a catheter into the uterine cavity and then injecting a contrast medium. Under X-ray irradiation, based on the flow of the contrast medium, the tubes are observed to see if they are blocked as well as the severity and location of the blockage, etc. The tubal fluid test can also be used to confirm the blockage. Tubal fluid test can also be taken, which has some therapeutic effect. This test is similar in principle to tubal imaging, in which saline is injected into the uterine cavity to observe whether the fallopian tubes are open or not, but it is not possible to accurately check which part of the fallopian tube is blocked.