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A member asked:

What is so special about blood type h?

A doctor has provided 1 answer

Rare occurrence: Blood group h or bombay phenotype is a rare variation in which the person is genetically deficient in the enzymes needed to make the base product for ABO blood group antigens. Such people make antibodies to all blood types except blood group h and thus would find it very difficult to find compatible blood.

Answered 1/12/2015

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