The vaginal ultrasound probe may vary in size from ultrasound instrument to ultrasound instrument and is usually about two fingers thick. A transvaginal ultrasound is a transvaginal ultrasound that shows lesions in the uterine adnexa more clearly. Because transvaginal ultrasound is performed through the vagina to the cervix, it has closer and clearer contact with the pelvic organs. The patient is placed flat on the examining bed in a truncated position, and the examiner applies a small amount of coupling agent to the end of the probe and then inserts a sterilized latex sleeve into the vagina for the examination. The probe is usually about two fingers thick and is inserted about 10 cm into the vagina to reveal an image of the uterus. The physician will take multiple views of the uterus to scan the uterus to look for lesions. Patients do not have to worry too much because the ultrasound probe in regular hospitals is usually regularly maintained, cleaned, and sterilized. In addition, the vaginal ultrasound probe penetrates deep into the vagina and may cause infection in cases of vaginal bleeding, so patients should be careful.