Women's Health
When should I start mammograms? And why do the numbers differ?
28 September 2026 · 6 min read · Dr. Shayma Alshareef
40, 45 or 50? Guidelines genuinely differ. Here is how to read them — and why your personal risk matters more than any single number.
40? 45? 50? If you are unsure when to have your first mammogram, you are not alone — and the different answers you hear may all be reasonable.
Guideline bodies weigh the benefit of early detection against false positives, extra testing and anxiety. Different weightings produce slightly different advice.
Two international examples
- USPSTF (2024): a mammogram every two years for average-risk women aged 40 to 74.
- American Cancer Society: the option of yearly screening at 40–44, yearly at 45–54, then every two years from 55 or yearly by preference, while in good health.
These are international examples, not Saudi national policy. Your own schedule should follow local guidance and a conversation with your physician.
When average doesn't apply
A strong family history, a known genetic mutation or chest radiation at a young age can change the plan — sometimes earlier screening, sometimes added breast MRI. The better question is not “when do women start?” but “what is my risk, and what plan fits me?”
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