Under normal circumstances, if a woman just does a hysteroscopy, the bleeding will disappear 3-5 days after the examination. The reason for bleeding is that during the hysteroscopy, saline or glucose solution will be injected into the uterine cavity to do the uterine expansion fluid, which will cause some stimulation and damage to the endometrium, resulting in the exfoliation of a small part of the endometrium and causing a small amount of bleeding to occur in women. Hysteroscopy is a minimally invasive test that can clearly observe the whole cervix, the thickness of the lining, the opening of the fallopian tubes, and foreign bodies in the uterine cavity, so that lesions in the uterine cavity can be detected early for treatment with hysteroscopic surgery. When women have a small amount of bleeding after hysteroscopy, they should also pay attention to proper rest, eat more hot food, and give anti-blood and anti-infection drugs for treatment if necessary.