“Whole-body MRI screening improves health outcomes in asymptomatic average-risk adults.”
No study has tested whether routine whole-body MRI helps healthy adults live longer or healthier.
A whole-body MRI can find things, but no one knows whether getting one helps healthy people live longer or better. The screening tests your doctor recommends for your age and risk are the better place to start.
If you are thinking about a whole-body scan, first ask your doctor which screening tests you are due for and what you would do about an unexpected finding.
Safety note: Findings from a whole-body scan often lead to more tests, and about 1 in 5 people with a non-cancer finding that needed follow-up went on to have a procedure, with added cost. This does not apply to MRI ordered for symptoms or to scans recommended for people at high risk.
No randomized trial or long-term study has measured whether people who get whole-body MRI scans live longer or stay healthier. The studies that exist only count what the scans find, and most were low quality.
No study has tested whether routine whole-body MRI helps healthy adults live longer or healthier. Studies show the scans find cancer in about 1 to 2 of every 100 people and some finding in most people, but not whether that improves health.
In a 2026 review of 17 studies and 18,043 people scanned without a medical reason, 78% had at least one finding reported, and about 15% had a non-cancer finding that needed follow-up; of those, 58% had more tests and 21% had a procedure. Cancer was found in 1.4%, and the review could not determine what happened to people's health afterward. A 2026 review of 10 studies and 9,024 people without symptoms found cancer in 1.6%, and most studies had a moderate to serious risk of bias. The American College of Radiology said in 2023 that there is not enough evidence to recommend total-body screening for people without symptoms, risk factors or family history, and no documented evidence that it prolongs life.
- Ahsan MD, Frontera N, Gurram A, et al. The Diagnostic Yield of Whole-Body MRI as a Multi-disease Screening Modality: A Systematic Review and Meta-analysis. Journal of General Internal Medicine. 2026 (online ahead of print). DOI: 10.1007/s11606-026-10802-y. PMID: 42823587
- Martins da Fonseca J, Trennepohl T, Pinheiro LG, Carra Forte G, Campello CA, Altmayer S, Andrade RG, Hochhegger B. Whole-body MRI for opportunistic cancer detection in asymptomatic individuals: a systematic review and meta-analysis. European Radiology. 2026;36(3):1813-1823. DOI: 10.1007/s00330-025-11976-5. PMID: 40884613
- American College of Radiology. ACR Statement on Screening Total Body MRI. April 17, 2023