Most people don’t spare a thought for their blood type unless they’re in need of a transfusion — but could yours hold secrets to your health? There are four main blood types: A, B, AB and O.

There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is important for safe blood transfusions and organ transplants. Type ...

Scientists have discovered the rarest blood type on Earth, belonging to just one woman. Talk about a lonely hearts club. An unidentified woman from Guadeloupe has the rarest blood type on Earth, to ...

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, ...

Thermo Fisher Scientific has put forward a DNA-based test it says can offer much more precise identification of blood and its potential compatibility—going much further than the traditional positive ...

In 2011, a woman from the French overseas region of Guadeloupe underwent routine tests before a surgery. Strikingly, doctors could not identify her blood group, which was so unique that they did not ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...