Clinically, 70-90% of endometrial polyps have abnormal uterine bleeding, which manifests as intermenstrual bleeding, excessive menstruation, irregular bleeding, and infertility. They are usually detected by pelvic ultrasound, and the best time to examine them is before the 10th day of the cycle; the diagnosis needs to be confirmed by hysteroscopic removal for pathological examination. Treatment of abnormal uterine bleeding due to endometrial polyps: ① polyps <1 cm in diameter can be observed and followed if they are asymptomatic. ②Larger polyps with symptoms are recommended for hysteroscopic polyp removal and scraping; blind scraping is easy to miss. ③For those who have completed childbirth or do not want to have children in the near future, short-acting oral contraceptives or levonorgestrel intrauterine delayed release system (LNG-IUS) can be considered to reduce the risk of recurrence. ④ Endometrial resection may be recommended for those who do not require fertility and have multiple recurrences. Hysterectomy may be considered for those at high risk of malignancy.