Having brown discharge is generally not recommended for hysteroscopy, as brown discharge indicates that there is still bleeding, just not much bleeding. It is generally recommended that hysteroscopy be performed within one week after menstruation, when the uterine lining is relatively thin and less prone to bleeding, and any pathology in the uterine cavity is also easy to see. Brown discharge also need to check the leukorrhea has no problem, if the leukorrhea routine examination has a problem is also not recommended to do hysteroscopy, because at this time to carry out hysteroscopy operation will increase the risk of infection in the uterine cavity. However, if there is a small amount of bleeding caused by intrauterine pregnancy residue or endometrial polyps, and the relevant laboratory tests such as general examination, gynecological examination, vaginal secretion examination are not problematic, and there is no acute or subacute reproductive tract infection, hysteroscopy can be performed.