There are three most common causes of endometrial needs, one is caused by inflammation, which we call inflammatory polyps. The second is caused by endocrine disorders. The third some have a family history, then the most common causes are these three. The most common treatment option for endometrial polyps is definitely hysteroscopic removal of endometrial polyps. However, some patients after endometrial polyp removal surgery, after two months and three months may do ultrasound examination and found the growth of endometrial polyps. For this group of patients who are prone to recurrence, it is necessary to use medications to help control the re-growth of endometrial polyps after surgery. The most commonly used medication in Western medicine is progesterone capsules, which are used for ten days after ovulation to control the growth of endometrial polyps.