Hysteroscopy can be more harmful than imaging because it may cause localized damage to the cervix or perforation of the uterus, or water intoxication, whereas imaging does not have any of these hazards. Imaging and hysteroscopy will enter the uterine cavity through the cervix, so both may cause localized mucosal damage to the cervix, if you do not pay attention to the postoperative period, do not strengthen the care or premature sexual intercourse, may lead to localized inflammation of the cervix, so in addition to rest after the operation, but also pay attention to the one-month not to have sexual intercourse, in order to avoid inflammatory reactions. In addition, in the postoperative period are to take oral anti-inflammatory drugs for about 2-3 days to prevent infection, if there are abnormalities, such as lower abdominal pain, increased vaginal bleeding, etc., go to the hospital in time for examination.