During the hysteroscopy, the bladder is placed in a truncated position, disinfection is routinely performed and then a towel is spread, the cervix is clamped with a uterine forceps, the depth and direction of the uterine cavity is understood with a probe, and the cervix is dilated to a size greater than half the diameter of the cervical body sheath. In general, the hysteroscopic sheath will be about 4 mm, as long as it is expanded to about 5 mm, so as not to expand the cervical opening too much to expand the uterine cavity, which will affect the results of the judgment. Then, the uterus can be opened with saline and the internal shape of the uterus can be clearly seen, such as the presence of endometrial polyps, submucosal fibroids, and bilateral tubal atresia, which can be treated according to the results of the examination. When bleeding is present, hysteroscopy can also be performed. After hysteroscopy, endoscopic scraping can be performed to help with pathological analysis and to provide guidance on the use of medication in the future.