Lifestyle

5 Medical Tests Doctors Say Most Healthy Adults Don’t Need Every Year

By Mike Harper · August 14, 2026

Your doctor ordered the bloodwork. Your insurance paid for the screening. Nobody mentioned that the test wasn’t recommended for someone like you — and that a false positive could lead to a procedure you didn’t need.

Not every medical test that’s offered is one that’s warranted. The U.S. Preventive Services Task Force — the independent panel Congress relies on for evidence-based screening recommendations — has identified several tests that are routinely performed on healthy adults without evidence that they improve outcomes. In some cases, the tests cause more harm than good through false positives, unnecessary follow-up procedures, and the anxiety that accompanies both.

A routine EKG when you have no heart symptoms. If you don’t have chest pain, shortness of breath, or a history of heart disease, a routine electrocardiogram isn’t recommended by the USPSTF. The test can produce false positives that lead to invasive follow-ups like CT angiography or cardiac catheterization — procedures that carry real risks for a problem that wasn’t there.

Annual bloodwork panels for everything. Comprehensive metabolic panels, thyroid screens, and liver function tests are frequently ordered as part of a yearly physical. But for healthy adults without symptoms, the USPSTF doesn’t recommend blanket annual blood testing. False positives on these panels can trigger months of additional testing, specialist visits, and worry — for findings that often resolve on their own or were never clinically significant.

A PSA test without a conversation about the tradeoffs. Prostate-specific antigen testing for prostate cancer remains one of the most debated screenings in medicine. The USPSTF recommends that men 55 to 69 discuss the test with their doctor rather than receive it automatically, because elevated PSA levels frequently lead to biopsies that reveal cancers so slow-growing they would never have caused symptoms. The decision should be shared — not routine.

A colonoscopy after age 75 without clear clinical justification. The standard recommendation is a colonoscopy every 10 years beginning at age 45. After 75, the USPSTF says the risks — including bowel perforation and complications from anesthesia — begin to outweigh the benefits for most people. Yet nearly a quarter of screening colonoscopies in adults over 70 are performed without clear clinical justification.

A full-body scan “just to check.” Whole-body CT scans and MRI screens are marketed directly to consumers as a way to catch problems early. But they aren’t recommended by any major medical organization for asymptomatic adults. The scans frequently reveal incidental findings — benign cysts, harmless nodules, anatomical variations — that lead to biopsies, follow-up imaging, and surgical consultations for conditions that were never going to cause harm.

The screening that’s right for you depends on your age, sex, family history, and personal risk factors — not on what the lab offers or what the billing code covers. Asking your doctor “do I actually need this test, and what will we do with the result?” before agreeing to a screening is the simplest way to avoid a cascade of unnecessary care.