Uterine adnexal ultrasound is a common clinical gynecological examination that can be performed 3-7 days after menstruation. There are two main methods, namely transvaginal ultrasound and transabdominal ultrasound.1. Transvaginal ultrasound: It is mainly suitable for people who have sex. A protective device will be worn on the ultrasound probe to avoid cross infection. If there is menstrual blood in the uterus, vaginal ultrasound will not be able to see the uterine adnexa and the endometrium clearly, and the bladder needs to be emptied before the examination. Abdominal ultrasound is to apply coupling agent on the abdomen and place the probe on the abdomen to move back and forth to see clearly whether there are uterine lesions and lesions in the adnexal area.