While a PSA of 12.9 ng/ml does raise concern, it does not automatically mean cancer, noted Dr Saraf. “The risk depends on age ...

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 ...

In medicine, a person’s blood-test results are compared with the average range in a population. But results are highly individual and tightly regulated around a person’s own stable values. Changes to ...