The cost of hysteroscopy is usually around 1000 RMB. The specific fee varies from hospital to hospital and from region to region. The principle of hysteroscopy is similar to that of the common gastroscope, which is based on the principle of total reflection of the glass fiber and can visually image the situation in the uterine cavity. Because of its intuitive and accurate features, it has become the preferred method of examination for some bleeding uterine cavity lesions or other uterine cavity lesions, such as endometrial polyps, suspected uterine adhesions, submucosal fibroids, and endometrial inflammation. The best time to perform the examination is 3-7 days after the end of menstruation because the endometrium is the thinnest, the mucus in the uterus is the least, and the environment in the uterus is the cleanest, so the examination at this time can detect some diseases more clearly and treat them at the same time. Generally, there may be a short period of bleeding after the examination, which can stop on its own and is normal.