The fallopian tubes are muscular tubes located between the ovaries and the uterus, with a rich distribution of cilia on the inner surface that oscillate in an outward to inward direction. A black film will be made after the examination, and the doctor can objectively analyze whether the fallopian tubes are open, aligned and in a functional state. Tubal lavage is not recommended because it is highly subjective and cannot determine which side is open on the left or right. Function of the fallopian tube: The fallopian tube is not a water pipe, it is functional. Even if the egg is transported to the uterus by cilia movement, if the fallopian tube imaging suggests that the tube is aligned and uplifted, stiff and watery, it indicates abnormal function and the chance of natural pregnancy will be reduced. If you are still infertile after 6 months of ovulation testing, you can consider IUI or IVF to help you conceive!