How Often Should I Donate Blood? There are 8 main blood types in humans, classified based on the ABO system and the presence or absence of the Rh factor. Here’s an overview of the types and ...

Scientists from the French Blood Establishment (EFS) has successfully identified the ultra-rare 48 th blood type group, known ...

Talk about a lonely hearts club. An unnamed woman from Guadeloupe has the rarest blood type on earth, to the extent that ...

Some blood types, however, like AB positive are universal recipients, meaning that individuals with this blood type can receive transfusions with any other blood type. This is not that case for ...

The rarest blood type is called Rhnull. Only around 1 in every 6 million people have Rhnull blood. Learn about other blood types and their compatibilities in this article.

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.

Incredible charts show link between your blood type and where you live in the world New research shows a fascinating correlation between where you live and the blood group you are most likely to have.

Scientists have discovered a new blood type in a woman from Guadeloupe, now recognized as one of the rarest in the world.

Not to B-negative, but your blood type could offer a clue to your risk of having a stroke before 60. “The number of people with early strokes is rising,” said Dr. Steven J. Kittner, co ...

A- and B- blood: These types can donate to both their respective types and AB types, regardless of Rh factor. A- can receive from A- and O-, while B- can receive from B- and O-.