The tubes are not visualized usually on the tubal imaging report card, commonly due to the following reasons: 1, the interstitial part of the fallopian tube is blocked, there is no way for the contrast agent to enter the fallopian tube, and the fallopian tube will not be visualized under the X-ray, and it is recommended to do IVF to solve the problem of pregnancy. 2, the contrast agent is relatively low in temperature, and it causes uterine contraction after entering the uterine cavity, the opening of the uterus and fallopian tube closes, and there is no way for the contrast agent to enter the fallopian tube, so the fallopian tube will not be visualized through the X-ray. After the contrast agent enters the uterine cavity, it causes the uterus to contract and the opening of the uterus and fallopian tube to close, so the contrast agent has no way to enter the fallopian tube, so the fallopian tube won’t be visualized through X-ray. It is recommended to take another film twenty-four hours after the contrast agent has been injected into the uterine cavity to find out whether there is any contrast agent in the fallopian tube and to judge whether the fallopian tube is blocked.