Most endometrial polyps are caused by chronic inflammatory irritation or by prolonged irritation of the endometrium. Most of the endometrial polyps are benign and the chance of cancer is very low. Even if the polyps have existed for 5 years, the chance of cancer is very low, probably between 1% and 3%, when they should be treated as actively as possible. This is because polyps can cause frequent abnormal bleeding and infection if they are present in the uterine cavity for a long time. In this case, hysteroscopic removal of endometrial polyps or electrodesiccation is performed to help restore the uterus to its normal shape. Then a pathological analysis is performed, and as long as it is determined to be benign, the chance of recurrence is around 3%-5.7%, after which an appropriate amount of oral short-acting contraceptive pills can be taken to regulate and avoid recurrence.