Bleeding after hysteroscopy is divided into two cases, one is bleeding after hysteroscopy and the other is bleeding after hysteroscopic surgical treatment, which needs to be analyzed in different situations. 1. Bleeding after hysteroscopy: hysteroscopy requires dilatation of the uterine orifice to allow the hysteroscope to enter the uterine cavity, and tiny blood vessels may break during the dilatation of the cervix. In addition, general hysteroscopy will biopsy the endometrium, often bleeding is less, no need to be nervous, bleeding will stop within 1 week; 2, bleeding after hysteroscopy: when performing hysteroscopic treatment of submucosal fibroids, uterine polyps and uterine diverticula, especially larger submucosal fibroids, postoperative bleeding may be slightly more, which will improve through treatment to promote uterine contraction. For hysteroscopy or postoperative bleeding, if the amount of bleeding is small, pay attention to observation, maintain pubic hygiene, change and wash underwear regularly, pay attention to rest, avoid getting cold, and forbid intercourse and tub bathing for 1 month. If there is heavy vaginal bleeding exceeding the amount of menstruation or the bleeding does not stop, it is recommended to go to the hospital promptly for necessary hemostatic treatment.