Mammogram Timing Clash: Start Age and Frequency Vary by Guideline
Guidelines for routine breast screening differ: ACP recommends average‑risk women start at 50–74 with biennial mammograms, USPSTF suggests starting at 40 with the same 2‑year interval, and ACS has long urged yearly screening starting at 45 (with 40 optional) and then switching to every year or every other year for older women. The disagreement reflects challenges in predicting risk and balancing benefits with harms, especially since dense breasts and tumor biology vary. New research (like the WISDOM trial) and tools to assess individual risk could tailor schedules in the future, including the potential use of DBT and broader gene testing. For now, consult a doctor about personal risk and stick with a chosen screening plan.
