At what age does the United States Preventive Services Task Force recommend starting screening mammography for females without risk factors?

The United States Preventive Services Task Force (USPSTF) recommends that women start screening mammography at the age of 40. This guideline is based on evidence demonstrating that screening at this age can help detect breast cancer early in women who do not have elevated risk factors. Starting at age 40 strikes a balance between potential benefits and harms associated with mammography.

The rationale for beginning screening at age 40 includes the understanding that breast cancer risk increases with age, and earlier detection through regular screenings can significantly improve treatment outcomes and reduce mortality. While some organizations may have different recommendations, the USPSTF guideline reflects a widely accepted consensus aimed at optimizing the timing for breast cancer screening in the general population.