The price of mammography is different depending on the equipment and the level of the hospital, the price is not the same, tertiary hospitals in about 400 yuan, secondary hospitals in about 300 yuan, the examination of medical insurance can be reimbursed. Mammograms are sensitive to calcification in the breast, and can detect benign or malignant lesions in the breast at an early stage, guiding clinicians to choose the correct treatment. Normal women’s physical examinations are conducted once every two years when they are 40 years of age or older, and once every year when they are 50 years of age or older. Breast ultrasound is a non-invasive test that can be repeated once every 3-6 months for patients with suspicious lesions or suspected malignant lesions with grading of grade 4 or above. For dense breasts, breast MRI can be considered if mammography is not effective.