Most endometrial polyps are caused by excessive hyperplasia of the endometrium. To prevent recurrence, progesterone medication can be taken under the guidance of the doctor, as progesterone can inhibit endometrial hyperplasia. If the patient does not have a childbirth plan, a Manned IUD can be placed inside the uterine cavity because the IUD contains a large amount of progestin, which can reduce the trouble of taking medication every day. It is best to review the thickness of the endometrium at the hospital every 3-6 months during the course of treatment, preferably 3-5 days before the onset of menstruation.