Hysteroscopy can check a lot of content, the most common inspection content mainly has the following aspects: 1, observe the shape of the female uterine cavity whether there is uterine deformity, whether there is uterine mediastinum and other abnormalities. 2, observe the female uterine endometrium whether there is abnormal thickening, whether there is malnutrition, whether there is a case of adhesion, and can also observe the patient’s bilaterally uterine horn of the tubal openings whether it is fluent. 3, Hysteroscopy can observe whether the patient’s birth control ring occurs intramyocardial incarceration, as well as the specific location of the Kanton where, at the same time, can guide the removal of the ring.4, hysteroscopy can find out whether there is a residue in the uterine cavity, whether there is an abnormal hyperplasia of the uterine endometrium, and whether there is a presence of submucosal uterine fibroid tumors.5, hysteroscopy can be detected in tubal flux, to observe the tubes whether the tubal fluids are smooth or not.