When we talk about Blood Groups or Types, we know there are only 3 – A, B and O. But there exist another one which you definitely don’t know about – Bombay Blood Group. This is extremely rare. It was discovered in Mumbai in 1952, hence the name, and is said to show up in 4 people out of a million. But hold on! What if there was one which was even rarer? Introducing, Rhnull or the cooler name – Golden Blood. 

Why is it called Golden Blood?

As it is the rarest blood type in the world. So rare that only around 40 people are recorded to have it and there are only 9 donors in the world. Our body constitutes RBCs (Red Blood Cells) and those cells have around 342 antigens. These antigens produce antibodies. The blood type of a person is determined on the basis of the presence or absence of these antigens.

160 of 342 blood group antigens are prevalent. Meaning, most people have it. Your blood type is considered rare if you lack antigens that 99% of the people are positive for. If you somehow lack an antigen that 99.99% are positive for, your blood type is extremely rare.

In the year 1974, a case of 10 years old Thomas shocked the doctors. He gets an infection checked out. As per the medical studies, there are 35 recognised blood group systems. Thomas didn’t seem to have any. Forget negative or positive, he even had no Rh antigens.Technically, he shouldn’t have been alive. Surprised doctors sent him to Amsterdam and Paris for further blood tests. It was confirmed. Thomas had Rhnull blood type.

Rhnull may be the true universal donor group for anyone who has a rare blood type. They can save lives but in case they need blood, they could be in danger. Studies say, people with Rhnull blood type can lead a normal life like any other else but they can be mildly anaemic. They need to take care of themselves little extra. They have to avoid injuries or accidents that can lead to blood loss.

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