A vaginal ultrasound is not inserted into the uterus, it is inserted into the vagina. A vaginal ultrasound is a vaginal ultrasound, in which a vaginal ultrasound probe is inserted into the vagina to probe around the uterine cavity for abnormalities. It is not inserted inside the uterus because the vagina and uterus are still connected by the thin cervical canal, which cannot be easily accessed, so a vaginal ultrasound will not cause damage to the uterus. Vaginal ultrasound is not required to hold urine for examination, which is a good choice compared to women who are not in a good state of holding urine. Moreover, ultrasound from the vagina is relatively closer to the pelvis and more direct, and the results of the examination are generally more accurate. Women who have obvious symptoms of vaginal bleeding, or who have not had sex, can not do vaginal ultrasound, you can choose to do ultrasound from the abdomen or from the anus into.