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Breast cancer screening

Who to screen, mammography interval, and shared decision points.

Last reviewed January 4, 2026
Who to screen
Women ages 40-74 at average or moderately increased risk. Do not use this pathway for symptoms, prior breast cancer, known high-risk genetic syndromes, or prior chest radiation.
Test and interval
Screening mammography every 2-3 years for ages 40-74 when screening is chosen. Routine screening is not recommended after age 74.
Shared decision
Discuss absolute benefit, false positives, and potential overdiagnosis, especially for ages 40-49. Document the patient preference and recall interval.
Additional imaging
Do not use MRI or ultrasound as screening tests for women with dense breasts at average or moderately increased risk.

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