Mammogram A mammogram is a special X-ray of the breast that can find signs of breast cancer early, sometimes before a lump can be felt. There are different types of mammograms. A screening mammogram is a routine test for women with no symptoms, while a diagnostic mammogram is done if there is a lump or an unusual result. Most mammograms today are digital (2D), which give flat pictures of the breast. A newer option is the 3D mammogram (tomosynthesis). It takes many pictures from different angles to make a clearer, layered view of the breast. This helps doctors see more detail, find smaller cancers, and reduces false alarms—especially for women with dense breast tissue. Because it gives a more complete picture, 3D mammography is often the best option. Most women should start having mammograms at age 40 and repeat them every one to two years, depending on their health and risk. lhdbenefits.com | 401 Pennsylvania Pkwy, Suite 200 | Indianapolis, IN 46280 | 317.705.1600