How often a tubal angiogram should be performed depends on the type of contrast agent used and the patient’s specific situation, which needs to be analyzed on a case-by-case basis. There are two main types of contrast agents used in the clinic for tubal imaging, i.e., pantopamine and iodine oil. If the contrast agent used is pantopamine, it can be done once a month; if it is iodine oil, it is better to do it at an interval of 2 months. Tubal imaging is to push the contrast agent into the uterine cavity and observe the flow of contrast agent through the uterine cavity and fallopian tubes to check the patency of the fallopian tubes. It is recommended that the test should be performed 3-7 days after menstruation and no intercourse during this period. Moreover, before the tubal imaging test, it is necessary to improve the routine white belt, electrocardiogram, coagulation time, blood routine and other tests, and the test results are normal before the tubal imaging test can be performed. After the tubal imaging, you usually need to stay in the hospital for 1 hour for observation. If there is no lower abdominal pain, vaginal bleeding and other uncomfortable conditions, you can leave the hospital. It is important to note that because of the exposure to X-rays, some of the radiation from X-rays will remain in the patient’s body after the test, so it is recommended to use birth control for 3 months after the test.