Their makers claim they can detect dozens of cancer types — but some scientists say they could be missing many cancers or ...

Private companies are capitalizing on this quest for information. Grail’s Galleri blood test screens for more than 50 ...

People who are trying to conceive may wonder if a blood pregnancy test can be wrong. These tests, which are done at a health care provider's office or in a lab, are over 99% accurate. Blood tests ...

Multi-cancer blood tests promise early detection, but the evidence is thin, the risks real, and they’re no substitute for listening to your body.

Colonoscopy is the gold standard for detecting colon cancer, but every year about 50 million people in the U.S. who qualify for a colonoscopy don't get it done, according to the American Cancer ...

Blood draws for several kinds of diagnostic tests require you to fast for several hours. Eating or drinking anything besides water can skew the results, leading to you needing to be retested. You may ...

No matter your age, regular blood work can be an important tool for understanding and optimizing your overall health. Finding certain markers in your blood allows healthcare professionals to gain ...

Colorectal cancer is one of the cancers where, if found early, it has a 91% chance of survival for the patient. If you find ...