The fluids are usually tubal fluids, and a second one can be done about a week after the first one. Tubal fluids are generally injected with saline into the uterine cavity and then flow into the fallopian tubes through the uterine cavity, so as to determine the smoothness of the fallopian tubes, if there is a blockage in the fallopian tubes, the obstructed fallopian tubes can be unblocked by the pressure of the injection, which usually needs to be carried out 3-7 days after the clean menstruation, and a one-week interval is usually needed for the repetition of the procedure. Tubal flux can be applied after infertility surgery to prevent tubal adhesion, and can also be used to unblock mild tubal adhesion, menstrual cycle disorders have not yet been corrected, inflammation of the reproductive organs, etc. patients are prohibited, and need to be checked before the operation to see if they are already pregnant. When the indications for tubal ligation are met, you can go to the hospital in time and have the relevant treatment under the guidance of the physician.