1. Patients who intend to undergo tubal lubrication should come for examination 2-4 days after their menstruation is completely clean (do not have coitus). Deng Xiaohui, Infertility Treatment Center, Qilu Hospital, Shandong University 2. Please bring a family member to accompany you on the day of surgery, and submit the medication for tubal ligation and outpatient medical records to the nurse station for triage 3. ② two weeks after the operation can not be coitus, vaginal bleeding can not coitus, so as not to cause infection. ③Take a shower and bath within two weeks, and prohibit basin bath. Consultation time: Monday to Friday all day, Saturday and Sunday morning. Tubal lavage treatment under ultrasound is not available on holidays.