The ABO-Rh system of blood group typing is an immensely successful method that helps medical professionals safely perform blood transfusions throughout the world. Scientists from the French Blood ...

Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...

After years of study, scientists have discovered a new blood type in a woman from Guadeloupe. They're now searching for more people with the characteristic. When you purchase through links on our site ...

A routine medical test turned extraordinary for a woman from the Caribbean when doctors found something completely new in her blood. Nearly 15 years ago, while preparing for surgery in Paris, doctors ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Today, we all understand the importance of blood type, but that's actually a relatively recent discovery. Before the 1900s, doctors believed all blood was the same, which unsurprisingly led to a lot ...

It started with a routine blood test before surgery. What doctors discovered next hadn’t been seen in medical history. For decades, most of us thought blood types were simple: A, B, AB, or O—each with ...

Blood type is usually determined during hospital visits, especially when a transfusion may be needed, such as in surgery or childbirth. [File, Standard] Many of us first learned our blood types during ...

Many of us first learned our blood types during school donation drives, often encouraged by the promise of soda and bread. Back then, our understanding was limited, shaped by myths such as 'Type O is ...