Most people are familiar with the common blood groups A, B, AB and O, along with the Rh factor that determines whether a type is positive or negative. Yet new research reveals how surprisingly complex ...

Talk about a lonely hearts club. An unidentified woman from Guadeloupe has the rarest blood type on Earth, to the extent that she’s only compatible with herself. The 68-year-old is thus far the only ...

Rarest Blood Type in the World: According to Stanford Blood Centre, there are a total of 8 types of blood groups, which are categorised based on the presence or absence of certain antigens on the ...

An investigation into why blood doesn't always behave as doctors expect has revealed a super-rare mutation in an extremely uncommon variation of blood. Testing more than 544,000 blood samples in a ...

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 ...