A member asked:

Random. how many blood types can a person have in the blood? the non-abo types?

A doctor has provided 1 answer

1 or 2: A person has her own blood type (that's #1) that she is born with. She may also have a second blood type from a transfusion (that's #2), but that second type is only temporary. In theory, if she has transfusions from more than one donor, she could temporarily have more than 2 blood types (especially if talking about "minor" blood type differences).

Answered 2/18/2016

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