News about Rare Blood Group

We know that A, B, AB and O are the four blood groups that can be Rh positive or negative (viz: A+, A-, B+, B-, AB+, AB-, O+ and O-). Among them, O+ is the most common; while AB- is the rarest blood type. The detailed explanation provided here will help in better understanding of the subject.

What are the Rare Blood Types?

➡ AB- (AB negative) is the most uncommon or the rarest blood type in the world. It is found in less than 1% of the world's population. To be precise, people having this blood group comprise 0.45% of the world population, i.e., 1 in 175-200 people. AB- is also the rarest blood type in the US. People having this blood type can receive blood from all other RH negative blood types like O-, A-, B- and AB-.

➡ The second most uncommon blood type is B- (B negative). It is found in 1.5-2% of the total world population, i.e., two in 70-100 people. People with this blood type can receive blood only from B- and O-.

➡ A-, O- and AB+ are also some of the rare blood types comprising approximately 3%, 4% and 5% of the total population. Blood types are not evenly distributed throughout the world. However, the ratio or the percentage to the total population, remains similar.