There are four ways to check the fallopian tubes:

1. Ultrasound acoustic imaging of fallopian tube examination: Ultrasound cannot directly observe the flow in the fallopian tube and display it in the uterus. It can only indirectly infer whether the fallopian tube is unobstructed by observing the presence of fluid in the rectal fossa. Its shape and concrete blocks cannot be determined.

2. Liquid flux fallopian tube examination: Because the fallopian tubes of various types of women with female infertility have different uterine sizes, they are prone to misdiagnosis. The misdiagnosis rate of hydrosalpinx technology is high, and there is a risk of hydrosalpinx rupture. It is now gradually replacing salpingography.

3. Laparoscopic fallopian tube examination: only know the patency of fallopian tube and whether the fallopian tube blockage is related to the adhesion of fallopian tube fimbria, check the fallopian tube of infertile women, clarify the location of fallopian tube blockage and the nature of fallopian tube cavity 4. Check the fallopian tube by x-ray hysterosalpingography: x-ray female fallopian tube hysterosalpingography is to inject contrast agent into the uterus and fallopian tube through catheter, use x-ray diagnostic instrument to perform x-ray fluoroscopy and radiography, according to the contrast enhancement of fallopian tube and pelvic cavity, understand whether the fallopian tube is patency, blockage and the form of uterine cavity.