Mammography and ultrasound have different starting points and target different detection points, so mammography results will be more accurate than ultrasound. Mammography, also known as X-ray, is usually used in women over the age of 50 to check for calcifications in the breast, and is more accurate than color ultrasound. It is often used to diagnose tumors that occur in the ducts of the breast and have not yet appeared as breast nodules, and can also clearly see the smaller nodules and detect small lumps early. In young women, the glands are richer, and the mammogram may not be very clear, so choosing color ultrasound will be more accurate than mammogram. The accuracy of mammogram and color ultrasound needs to be considered for different detection points, and the appropriate method should be chosen according to the area to be done.