Breast cancer is the most common cancer type in women and the fourth leading cause of cancer death in the United States (1). The goal of screening is to reduce morbidity and mortality, both specific to breast cancer and overall, with acceptable tradeoffs (2, 3). The most commonly used screening test is mammography. Recommended strategies vary for breast cancer screening in average-risk women. Ages to start and discontinue mammography, screening intervals, the role of imaging methods other than mammography, and the role of clinical breast examination (CBE) have been points of disagreement among guideline developers.