Q:

Why is AB negative blood so rare?

A:

People with AB negative blood type account for 1 percent of the population, according to Oneblood.org. This is very rare due to the genetic components that must come together to create a person with this blood type. A person with AB negative blood possesses both A and B antigens.

Additionally, people with AB negative blood are considered Rh negative. Children with this blood type must be born to parents who are both Rh negative, which is a recessive gene. Considering that less than 20 percent of the population has Rh negative blood, and even fewer are AB negative, a person with AB negative blood type is rare.


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