Vaginal ultrasound can not detect normal fallopian tubes, but if the fallopian tube fluid, pus or fallopian tube tumors, the fallopian tube enlargement, thickening is particularly obvious can be detected by vaginal ultrasound. But vaginal ultrasound can see the sick fallopian tubes, normal fallopian tubes can not be seen, because the normal fallopian tubes are very thin. If the couple has been preparing for pregnancy for many years without getting pregnant, and want to know whether the fallopian tubes are blocked, they can have a tubal imaging or tubal fluid test to know the smoothness of the fallopian tubes. Women should have their tubes examined within 3-7 days of their menstrual period, whether it is for tubal imaging or tubal lysis, and routine leukorrhea tests should be performed before the procedure, and if there is vaginitis, it is recommended that the tubes be examined after the next menstrual period is cleaned up.