Scientists are working to grow the rarest blood type in the world in a lab, an effort that could have huge ramifications for medicine. The blood type in question, Rh null, is found in just 50 people ...

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 ...

A mum says she owes her son's life to the strangers who donated the rare type of blood he needed as a critically ill newborn.

There are rare blood types beyond the eight most common ones, and researchers have discovered one more that brings the total count to 49. Blood type A(B) is caused by a four gene mutations and was ...

A woman whose blood donations are so rare they are frozen for up to 30 years said she feels "very special and honoured" to be able to help sick patients. Mina Stoddart-Stones, from Bridgwater in ...

As blood banks across the U.S. report dangerously low supplies of O-negative blood (red blood cells) - commonly called the ...