
How Hematocrit and Hemoglobin Differ on Your Blood Test
Hematocrit vs hemoglobin sound alike but measure different things—and can disagree on who's anemic. Here's the real difference.

Hematocrit vs hemoglobin sound alike but measure different things—and can disagree on who's anemic. Here's the real difference.

MCH vs MCHC differ: one is the amount of hemoglobin per red cell, the other its concentration — and a high MCHC is often a lab artifact, not disease.

A high RDW on your CBC flags that your red blood cells vary in size. Read alongside your MCV, it points toward a cause — most often a common deficiency.

A high or low MCV rarely tells the whole story alone. See what a result above 100 or below 80 means—and why a normal MCV isn't always reassuring.

A low hemoglobin—below 13 g/dL in men, 12 in women—is only the start. Your MCV reveals the real cause, and some numbers mean it's an emergency.

Your CBC with differential sorts white blood cells into five types. Here's what a high or low neutrophil or lymphocyte result actually tells you.

Low neutrophils aren't all equal: mild neutropenia is common, but an ANC under 500 is severe. See what caused yours and the fever that can't wait.

A low white blood cell count is often silent — many feel nothing until an infection appears. Here's what causes it and when the drop turns serious.

A high white blood cell count above 11,000 rarely means cancer — far more often it's your body responding to infection, inflammation, or stress.

A flagged CBC differential rarely means what patients fear: a shifted percentage often reflects proportion, not a true excess of any one white cell.