Dense breasts can decrease the sensitivity of screening mammogram (MMG). Some US states have mandated reporting of breast density on MMG, while the rest of the states report on dense breasts voluntarily as a standardized reporting system. What supplemental breast imaging tools are advised as a follow up in these patients? Does the ACOG support supplemental breast imaging in average risk patients? What about the USPSTF? In this session we will do a deep dive into this common MMG description of “dense breast noted”.