Color ultrasound and molybdenum target have different focuses, mainly to detect tumors in different ways, and it is necessary to do molybdenum target after color ultrasound. Color ultrasound has better penetration and no radiation, is a painless and non-invasive examination, and has the ability to identify the size of the mass. In the ultrasound examination, the morphology and location of the lesion are judged more accurately, and there are differences in the determination of the type of echo and the edge, so the accuracy of ultrasound examination is not very high, and the accuracy of using ultrasound examination alone is about 70%. If you want to achieve more accurate results, you can use a combination of mammography, the accuracy of the two examinations can be as high as about 90%. Mammograms can be used to determine the risk of breast cancer developing in the breast tissue, and they have a unique diagnostic advantage for calcified breast cancer. Both tests have their own strengths and weaknesses for different groups of people and different symptoms. When one test does not lead to a definitive diagnosis, another diagnostic modality can be chosen, and combining the two modalities can improve the accuracy of the diagnosis.