Pelvic ultrasound can generally be used for the examination of chocolate cysts. Pelvic ultrasound is suitable for observing whether the organs in the pelvis are normal or not, and it can be used to determine whether there are abnormal echoes in the adnexal area on both sides and other areas, such as ovarian cysts, hydrosalpinx, and whether there is any accumulation of fluid in the pelvic cavity. Chocolate cysts are formed when the endometrium is ectopic in the ovary, and the color ultrasound examination is diversified, and you can see point-like hypoechoic, mesoechoic, and reticular echogenicity inside the cyst, and in some patients, due to the thicker cyst wall, you may also see blood flow signals in the cyst wall, and so on. The diagnosis of chocolate cysts can be made on the basis of the ultrasound results, combined with a comprehensive assessment of the patient’s symptoms, such as dysmenorrhea, pain during sexual intercourse, anal cramps, prolonged menstruation, irregular vaginal bleeding, infertility, and other symptoms. Patients who want to do pelvic ultrasound to check for chocolate cysts are advised to go to a regular hospital, consult with a professional doctor, and cooperate with the doctor to complete the relevant examinations to avoid blind treatment.