The methods usually used to check whether the fallopian tubes are open or not are: tubal fluid test, hysterosalpingography, laparoscopy and hysteroscopic tubal fluid test. Tubal fluids is a method to check whether the fallopian tubes are open or not, and has a certain therapeutic effect, before the surgery will be fluids through the vagina into the uterine cavity, through the catheter to the uterine cavity injected into the liquid, the doctor according to the size of the resistance to injection and the degree of liquid reflux, and the patient’s feeling, to determine whether the fallopian tubes are open or not. Hysterosalpingography, injecting contrast medium into the uterine cavity and at the same time performing x-ray fluoroscopy and filming, observing the contrast medium in the uterine cavity, fallopian tubes and pelvis, so as to determine whether the fallopian tubes are open, the obstruction site and the shape of the uterine cavity. Gynecological endoscopy tubal patency test, that is, under the laparoscopy and hysteroscopy, to see whether the fallopian tubes are patulous, compared with the first two more intuitive, but relatively traumatic to the human body, the price is higher, so it is not recommended to do a routine examination.