The purpose of ovography is to check whether the fallopian tubes are open or not, to determine the obstruction site, and to see the shape of the uterine cavity. Tubal obstruction is one of the main factors leading to infertility. If you have sex for a long time during the ovulation period and still do not get pregnant, you need to go to the hospital in time to do the relevant examinations, such as tubal imaging, tubal fluid, and so on. The main purpose of tubalography is to check whether the fallopian tubes are smooth, the blockage site, the shape of the uterine cavity and so on. If the tubes are open, the tubes are visualized bilaterally with soft morphology. When there is obstruction in the fallopian tube, the fallopian tube will not be visualized, and no scattered contrast fluid can be seen in the pelvis, which may indicate hydrosalpinx, abnormal development of the fallopian tube and so on. The normal uterine cavity is an inverted triangle, and the normal morphology can be determined after injection of contrast medium.