Endometrial polyps can cause irregular vaginal bleeding, which can manifest as non-menstrual vaginal bleeding or menstrual vaginal bleeding, leading to prolonged menstrual periods and incomplete menstrual discharge. These conditions are generally caused by endometrial polyps. Generally, if endometrial polyps occur, it is recommended that patients undergo a hysteroscopic examination to assess the number and size of polyps. If necessary, surgical removal under hysteroscopy is required.