A normal red blood cell count ranges between 4.5 and 5.3 million cells/μL for males ages 12 to 18 years, while the range is 4.1 to 5.1 million cells/μL for females of the same age group. How do ...

A high RDW can be one sign of anemia, which is a condition where your body doesn’t make enough red blood cells. Because of the decrease in red blood cells in anemia, your tissues don’t get ...

In a routine blood test that turned extraordinary, French scientists have identified the world’s newest and rarest blood group. The sole known carrier is a woman from Guadeloupe whose blood is so ...

A team led by the University of Sydney has identified red blood cell rupture at dying endothelial sites as a primary driver of microvascular obstruction in COVID-19, bypassing the expected role of ...

Red blood cells are complex — there's much more to blood types than A, B and O. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Many ...

Scientists have uncovered a new biological mechanism behind tissue and organ damage in low-oxygen conditions like heart attacks, strokes, and severe COVID-19. Bursting red blood cells—not ...

A mean corpuscular hemoglobin concentration (MCHC) blood test measures the amount of a protein called hemoglobin in your red blood cells. It’s one of many measurements included in a complete ...

Schematic of RBC lysis and Endo-seal formation on dying endothelium. Credit: Nature (2025). DOI: 10.1038/s41586-025-09076-x ...