The U.S. Preventive Services Task Force (USPSTF) issued new draft guidelines on April 30, 2024, recommending that all women receive biennial (every two years) mammograms for breast cancer screening, starting at age 40 and continuing until age 74. This updates their previous guidance, which advised beginning screening at age 50, and is projected to save '19% more lives' by reducing breast cancer deaths. The draft guidelines are currently open for public comment until May 29, 2024.
The decision to lower the starting age for screening aims to address the disparity in breast cancer mortality, particularly benefiting Black women who are 40% more likely to die from the disease. While acknowledging potential harms of screening, such as false positives, unnecessary biopsies, anxiety, and overdiagnosis, the USPSTF determined the mortality reduction outweighs these risks. However, the task force found insufficient evidence to recommend routine mammography for women aged 75 and older.
The new guidelines also highlight that mammograms are less effective for women with dense breasts, who may require supplemental screening methods like ultrasound or MRI. Despite this, the USPSTF indicated there is insufficient evidence to recommend supplemental screening for women with dense breasts as a standard practice. These recommendations align with some professional organizations, like the American College of Radiology, but differ from the American Cancer Society, which advises annual screening for women aged 40-54.
