Home » Uncategorized » Rarest Blood Type or Group in the World, A, B, AB, O, Rhesus Factor (Rh+, Rh-) & Chart

Rarest Blood Type or Group in the World, A, B, AB, O, Rhesus Factor (Rh+, Rh-) & Chart

We may earn a commission when you purchase via links on this page. See our affiliate disclosure.

What is the rarest blood type or group in the world (on earth)? Blood is classified into groups using the letters A, B, C and O. In addition, the Rhesus factor characteristic, which can be positive (Rh+) or negative (Rh-) is also marked in the groups. In total there are 8 groups of blood. But which of these blood groups is the rarest and why?

Types of Blood Groups

Rhesus Factor

Occurrence of Blood Groups

GroupPercentage Distribution
O+37.4%1 in every  3
A+35.7%1 in every 3
B+8.5%1 in every 12
AB+3.4%1 in every 29
O-6.6%1 in every 15
A-6.3%1 in every 16
B-1.5%1 in every 67
AB-0.6%1 in every 167

From the chart above, it is clear that the most common blood type is O+. On the other hand, the rarest blood type is AB-.

Rarest Blood Type

 

 

Compatibility of Blood Groups

Leave a Comment