The rarest blood type is called Rhnull. Only around 1 in every 6 million people have Rhnull blood. Learn about other blood types and their compatibilities in this article.

Use this exciting infographic as a teaching aid for your classes as your students discover the ABO/Rh blood groups.

There are many more blood types than just A, B and O.

In some East Asian countries, a person’s blood type is believed to determine personality traits including temperament and compatibility with others. However, the scientific community dismisses the blood type personality theory, citing a lack of evidence. They say blood types are maintained as a classification system for safe transfusions of blood in emergency situations.Known as the ABO blood group system, different...

B negative(B -ve), which is found in 1.5 percent of the total population. AB negative(AB -ve), which is found in 0.6 percent of the total population. AB positive(AB +ve), which is found in 3.4 percent of the total population.

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There is no study available to prove whether or not there is any correlation between a person’s blood type and their personality.