Tubal obstruction is one of the main causes of female infertility, and there are two main ways to check the fallopian tubes: 1) Tubal Fluidization. 2) Tubal Imaging. Both are required to be clean 3-7 days after menstruation, as well as the case of different rooms to operate, before the operation are required to put into the uterine cavity of the tubal fluid tube. The procedure involves injecting fluid into the tubes, and based on the resistance of the injected fluid and the reflux of the fluid, combined with the patient’s own sensations, it is possible to infer whether the tubes are not open. Tubal imaging is performed by injecting a contrast medium into the uterine cavity. X-ray pictures can be taken to see if the tubes are open, which side is open and which side is not, and the shape of the uterine cavity can also be observed.