Labeling medical test results as ‘normal’ or ‘abnormal’ helps clinicians make quick judgments when diagnosing patients. But this binary approach to interpreting tests can lead to fatal errors.

A sample of your blood can reveal much about your health. But it can be hard to know which blood tests are truly worth taking ...

Ask questions, bring a family member or friend to appointments if it helps, and take time to learn about your diagnosis and options.

ASH 2026 guidelines redefine iron deficiency diagnosis with higher ferritin thresholds, aiming for better detection and management across diverse populations.

A large-scale analysis of 455,530 infection patients shows that routine blood count parameters form distinct site-associated ...

A 19-year-old woman presented with fever and cervical lymphadenopathy. The white-cell count was 2900 per microliter (reference range, 4000 to 11,000), and the lactate dehydrogenase level was ...

Adding a blood test to routine screening found about 6.5 times as many cancers in adults over 50, including many at an early stage.

A controversial blood test aimed at detecting multiple cancers was backed by a U.S. Food and Drug Administration panel this week. Here's what to know.

When looking at a CBC, the WBC is high.Then, 'Could it be an infection?' is something we often consider. Certainly, in bacterial infections, white blood cells, especially neutrophils can increase.

A U.S. Food and Drug Administration advisory panel voted in favor of recommending that the agency approve a blood test for multiple cancers on Wednesday. The assay, called the Galleri test, is ...

Federal health advisers on Wednesday endorsed a blood test designed to spot signs of various cancers in apparently healthy people while warning that it’s far from clear how well it works. Grail Inc.’s ...