There may be a small amount of vaginal bleeding after the tubal lavage, as contact bleeding may occur due to the need to clamp the cervix during the procedure. In addition, the lavage tube needs to be inserted into the uterine cavity and a water bladder is formed and stuck to the inner cervical opening. By injecting fluid into the lavage tube, it is possible to determine whether the tubes are open bilaterally, and this process may stimulate the local endometrium, causing it to shed and bleed. If the amount is very small and you do not feel any discomfort in the lower abdomen, you can observe it for a while. If the vaginal bleeding is heavy, it is recommended to consult a doctor in time to rule out other causes of vaginal bleeding. Tubal lavage is the main method to determine or simply treat female infertility caused by tubal incompetence.