Medical Experts Warn 95% of Full-Body MRI Screens Find Abnormalities as DTC Tests Spread
Updated
Updated · The Guardian · Jun 21
Medical Experts Warn 95% of Full-Body MRI Screens Find Abnormalities as DTC Tests Spread
2 articles · Updated · The Guardian · Jun 21
Summary
A growing share of direct-to-consumer health tests is pushing healthy people toward screening that experts say often yields ambiguous results rather than clear prevention benefits.
Whole-body MRI scans illustrate the problem: one review found 95% of participants had abnormal findings, about one-third needed follow-up, and fewer than 0.5% had findings suspicious for cancer.
Those incidental findings can trigger cascades of biopsies, specialist visits and added costs, while also leaving patients feeling less healthy despite having no symptoms.
Even established screening can become overscreening when used too broadly or too often; experts note frequent mammograms raise early-stage cancer diagnoses more than they cut advanced disease, with uncertain effects on overall mortality.
Clinicians urge patients to rely on evidence-based screening advice from primary care doctors and to question whether a test reduces death or disability before paying for it.