35+ Most Rarest Blood Type Images. It can also cause other health issues. The rarest blood type is rhnull.
Come take a look at the most rare blood types that humans can have. That leaves us with eight possible primary blood types, although there are a few more rare ones. What are the rarest blood types on earth?
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Rare blood types and rare blood information with charts and answers to questions about rare blood. In the usa, of the commonly known types, ab negative is the most rare type (1%). Donors with rare blood types. Type o is the most common in humans as well, but those with it can only receive type o.