A blood test is a medical procedure where a sample of a person's blood is taken (called a blood draw) and sent to a lab for analysis. Knowing the results of blood tests helps a physician better ...

Recent research suggests that blood tests may show markers of oral cancer. But a blood test isn’t enough to confirm an oral cancer diagnosis. A biopsy is the only way to confirm it. Blood tests for ...

Doctors may use several tests to help diagnose hemochromatosis. The process may start with a physical exam and blood tests to check a person’s iron levels. Healthcare professionals use the terms ...

That blood test your doctor suggested to check for Alzheimer’s? It might be giving dramatically different results depending on your race. While these tests promise earlier detection of a devastating ...