Whether the ultrasound is normal or not needs to do hysteroscopy depends on the specific situation, if the body does not show any discomfort there is no need to do it. If there is prolonged vaginal bleeding or not easy to conceive, can not find the reason, then need to do hysteroscopy, can be more intuitive to see the tiny lesions in the uterine cavity, thus more conducive to the diagnosis of the disease. This also belongs to a kind of surgery, need to make some instruments to invade the uterus, so there is a certain damage, it is recommended to go to the regular public hospital check, operation regular, skilled. After the operation will cause slight pain in the lower abdomen and a small amount of vaginal bleeding, this is a normal phenomenon, pay attention to rest, keep the vulva clean, avoid infection, do not have sexual relations and sitz bath.