Why Is Type A Blood Called “Noble Blood”?
Apr 22, 2020
Source: Cainiu Health
Dr. Li Man
Introduction
First, let’s dispel a myth: Type A blood is not “noble blood.” In fact, Type A is a relatively common blood type; the truly rare “noble blood” refers to Type AB. Type A blood is defined by the presence of antigen A on red blood cells. Within the ABO blood group system, Type A blood is further subdivided into two subtypes: A1 and A2. During blood transfusions, the general principle is to transfuse the same blood type—thus, individuals with Type A blood should receive Type A blood.
Blood type refers to the antigen types present on the surface of blood components. Many parents speculate about their child’s blood type even before birth. The commonly referred-to “blood type” specifically denotes the type of specific antigens expressed on red blood cell membranes. Human blood type is genetically inherited from one’s parents and remains unchanged throughout life. So why is type A blood sometimes called “noble blood”? Below, we provide a detailed explanation of this question.
Why Is Type A Blood Called “Noble Blood”?
First, let us clarify a misconception: Type A blood is not called “noble blood.” In fact, type A is a relatively common blood type. The term “noble blood” truly applies to type AB blood. Type A blood refers to blood containing antigen A. Within the ABO blood group system, there are two subtypes—A1 and A2. During blood transfusion, the general principle is to administer blood of the same type; thus, individuals with type A blood should receive type A blood.
Why Is Type AB Blood Called “Noble Blood”?
Type AB blood is a unique blood type, often dubbed the “noble blood type.” Individuals with type AB blood tend to differ slightly from those with other blood types—not only in personality traits but also in aspects of physical health. Type AB is relatively rare among the major blood groups (A, B, O, and AB), and individuals with this blood type are considered universal recipients. This is because their serum naturally lacks anti-A and anti-B agglutinins. While standard transfusion practice dictates using blood of the same type, individuals with type AB blood can safely receive red blood cells from donors of any ABO blood type.
Type A blood is not called “noble blood,” as it is relatively common. True “noble blood” refers to type AB blood—the universal recipient—because individuals with this blood type are inherently distinctive: their serum contains neither anti-A nor anti-B agglutinins, enabling them to receive blood of any ABO type. We hope the above information is helpful to you.
