A California company says its blood test can discover 50 types of cancer in early stages, and the U.K. will put that claim to the test. Grail, a startup health company backed by Bill Gates and Jeff ...

Around four years ago, now 77-year-old John Gormly went for what was supposed to be a routine blood test. But the results were life-changing. The test suggested Gormly had colon cancer, which a ...

Researchers are studying tests called liquid biopsies, which can provide vital information about cancer genes using only a blood sample. A blood test to find cancer even before it shows any symptoms ...