There are two clinical methods to check whether the fallopian tubes are blocked: First, a tubal lavage test under the instruction of ultrasound, which costs about 500 RMB. Second, a tubal imaging test, which involves injecting iodophor in the uterine cavity under X-ray to check whether the uterus is deformed and whether the fallopian tubes are open. If there is obstruction, it is clear where it is located and costs about 800 RMB. Both tests need to be done on 3-7 days after menstruation and do not have intercourse. In the outpatient clinic, you also need to check the white belt routine, blood routine and clotting time are normal before you can do these two checks. Due to the different levels of hospitals, the charges are also different, and the tertiary hospitals will have slightly higher charges than the secondary hospitals.