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 people know ...

What Is a RDW Blood Test? An RDW blood test – also known as a red blood cell distribution width blood test – is a measure of the difference in your red blood cells’ size and volume. RDW is one part of ...

The longer a person has type 2 diabetes, the greater the risk of cardiovascular disease. A new study from Karolinska Institutet, published in the journal Diabetes, shows that changes in red blood ...

More than 100 years ago, Dr. Karl Landsteiner discovered that not all red blood cells are alike. He found that, when different people's blood was mixed, it would often clump up and curdle, destroying ...