Everyone has a different blood type. So far, science tells us about four blood types. They are: A, B, O, AB. These blood types differ by antigens that stimulate the immune system and the absence of antigens. Along with these four blood groups, each group has the possibility of having a protein called Rh factor (+) or not (-). Through this, blood types are further divided into eight types. Accordingly, it can be divided into A positive, negative (A+, A-), B positive, negative (B+, B-), O positive, negative, (O+, O-), AB positive, negative (AB+, AB-). We cannot choose blood type. It is inherited. We cannot change it even if we want to.
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