Transabdominal ultrasound: 1, the subject adopts a supine position, lift the clothing to fully expose the abdomen; 2, the doctor will apply coupling agent on the subject’s abdomen, and then use the ultrasound probe to perform longitudinal, transverse and oblique scanning in the lower abdomen to observe the situation of the pelvic organs; 3, at the end of the examination, the subject can wipe off the remaining coupling agent with a tissue. Transvaginal ultrasound examination: 1. The examinee lies in a supine position on the examination bed with the buttocks close to the edge of the bed, takes off the pants and places the legs apart on the leg brace, fully exposing the perineum and placing the hands on the chest or both sides of the body; 2. The doctor puts the ultrasound probe on a sterilized condom and applies a small amount of coupling agent to gently insert it into the vagina and slowly move it for scanning; 3. 3. At the end of the examination, the patient wipes off the remaining coupling agent with a tissue.