Mammography is the screening test that is used to find early breast cancer.
Mammography uses low-energy X-rays to examine the human breast for diagnosis and screening. The goal of mammography is the early detection of breast cancer, typically through detection of characteristic masses or microcalcifications.
More recently, it has been determined that the overall “density” of the background image of the breast is an indicator of future breast cancer. This background density or whiteness varies from woman-to-woman and changes during a women’s life.