“First discovered in an Aboriginal Australian woman in 1961, the RH null (Rhesus null) is one of the rarest and most precious blood types in the world. Like a needle in a haystack, less than 50 people in the world are known to have it!

People who have the ‘golden blood’ type lack these Rh antigens. Their DNA lacks the genes responsible for building those RBC protein complexes. These people don’t just lack one, two or three of these 61 Rh antigens, they actually lack all of them. Yes, you read that right: all of them. As you might have guessed, people with Rh_null blood type have abnormal RBCs. They have deformed shapes, leaky membranes and shorter lifespans, which sometimes result in mild anaemia for the individual. Still, the absence of all Rh antigens makes Rh_null the ‘golden blood’, which is highly admired for its rarity and medical purposes.

To find out why this blood type was coined as the ‘golden blood’, we need to open the world of blood types and its systems.”

The University of Melbourne