A universal donor blood group is that blood group that can be used during an emergency. In general O negative blood group is regarded as a universal group. O negative blood group does not have any antigen and rhesus (Rh) factor. As a result, such blood group does not react with people of other blood groups. That is why, it is known as the universal donor blood group.
Hello, Welcome to icliniq.com. I read your query and understand your concern. Blood types are usually classified into A, B, AB, and O for simplicity, although there are other rarer types.
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