Breast cancer is the most common malignant tumor that threatens women’s life and health, and breast diseases are also a serious threat to women’s health and family happiness. For this reason, early detection, diagnosis and treatment of common breast diseases, especially breast cancer, should be done, and breast screening is more important. The most effective and reliable way for early diagnosis of the disease is mammography, which is basically a large flat-panel digital molybdenum-tungsten dual-target imaging, and even simultaneous mammography. The American Cancer Society (ACS) guidelines for early cancer screening require regular annual mammograms for women over the age of 40, with remarkable success. In the United States and Canada, although the incidence of breast cancer is on the rise, the mortality rate of breast cancer has been decreasing year by year. In recent years, more and more attention has been paid to mammography screening in China. Some census data show that mammary hyperplasia is the most common disease, and the peak age of the disease is 30 to 50 years old. Mammary gland hyperplasia is caused by endocrine disorders, increased estrogen or progesterone ratio imbalance and abnormal quality and quantity of estrogen receptors in breast tissue. Clinically, breast distension is associated with the menstrual cycle, and the hyperplastic glands are indistinct, extensive, mainly located in the outer upper quadrant of the breast, and soft in texture. Mammography shows lesions that are lamellar, mass-like, extensive, dense, with irregular margins, or in some cases, uniformly dense shadows. Fibromas are caused by an abnormal increase in the sensitivity of fibroblasts to estrogen in the lobules, which may be related to the abnormal quantity or quality of estrogen receptors contained in fibroblasts, and estrogen is the stimulating factor for the development of this disease. The size of the lump is similar to the clinical findings on mammography, and it is mostly round or oval in shape with smooth and neat edges and density equal to or higher than the density of the gland. In recent years, the incidence of breast cancer is not only increasing, but also has an early age of onset. Early detection, early diagnosis, and single-stage treatment are important factors in improving the prognosis of breast cancer. Screening with mammography is a key factor for early detection and early diagnosis. Mammography of breast cancer shows irregular masses or limited dense infiltrates with burrs, vascular thickening and skin thickening. The incidence of calcification in breast cancer is quite high and sometimes it is the only sign, and clusters of fine sand-like calcification are specific.