Tubal imaging is mainly used to find out whether there is obstruction in the fallopian tubes and where the obstruction is located. During the operation, contrast is injected into the uterine cavity and fallopian tubes through the cervical canal, and X-ray films are taken to determine the health status of the fallopian tubes and uterine cavity according to the distribution of the contrast in the fallopian tubes and uterine cavity. This test has a high application value for infertility caused by tubal diseases and has the advantages of being less invasive, simple, safe and effective. Tubal imaging can be used as a basis for determining many diseases or symptoms, such as uterine malformations, causes of infertility, intrauterine adhesions, and tumors in the uterus. The best time to have a tubal imaging test is about 5 days after your period has ended and your uterus has cleared. If your menstrual cycle has been disrupted, it is recommended that you consult your doctor and then have the test at a later date. The health risks associated with tubal screening are minimal and negligible. It is important to note that you should not have sex before or after the test, and you should go to the hospital promptly if you experience heavy vaginal bleeding after the test. If a woman is pregnant, has just given birth or had a miscarriage or a curettage, is allergic to iodine, or is too weak to undergo the procedure, a tubal screening is not recommended.