Based on statistics, the rarest blood type is AB negative. According to the American Red Cross, AB negative blood type occurs in "1% of Caucasian, 0.3% of African American, 0.1% of Asian and 0.2% ...
If you've ever searched the internet for the rarest blood type, you may have come up with more questions than answers. The short answer: AB negative is the rarest of the eight main blood types. Less ...