Transvaginal ultrasound usually takes about 10-30 minutes, depending on the patient’s specific disease, the skill level of the operating physician, the accuracy of the equipment, etc. The exact time varies greatly from one individual to another and cannot be generalized. Transvaginal ultrasound provides a clearer visualization of the uterine adnexal lesions. Because transvaginal ultrasound is performed through the vagina to reach the cervix, it has a closer contact with the pelvic organs and shows them more clearly. Also, vaginal ultrasound does not require holding urine, so it is relatively simple. However, vaginal ultrasound requires the insertion of a probe into the woman’s vagina, which may cause discomfort, but is generally tolerated by patients. In addition, when a patient has abnormal vaginal bleeding, vaginal ultrasound should be avoided as much as possible to avoid episodic infection; however, if necessary, when an emergency operation is needed, it should be performed after tightly disinfecting the vulva.