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 ...

Dr. Karl Landsteiner won the Nobel prize in 1930 for developing the ABO blood group system. The ABO system is the best known method of classifying blood types. It’s important to know your blood type ...

Currently, there is a high demand for blood, with experts urging people to donate if they are able. This is because they need enough of the correct blood type to "meet day-to-day patient needs and to ...