Too much testing can be harmful to your health

A CT scan could be lifesaving. But recent research suggests that roughly a third of them serve little if any medical purpose. That’s a lot of needless radiation, raising patients’ risk of getting cancer.

Consumer Reports has put together this head-to-toe guide to when CT scans and X-rays are needed, and when they’re not.

Those aren’t the only tests you might not need. Testing seems like a harmless concept, but … sometimes it’s not. Medicine is packed with tests that turn out to add little new information, waste your time, or even raise your risk of something going wrong.

Want more info?

Here’s our guide to avoiding overuse of preventive and screening tests.

And here’s our guide to avoiding needless tests and imaging before surgery.

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