After several transfusions of Rh(+) blood to an Rh(-), Rh(-) person becomes very sensitive to Rh(+) antigens, blood transfusion complications are extremely dangerous. If Rh + blood is given to these people for the second time, it can cause a serious blood transfusion accident, no less than a transfusion accident of the ABO system. After 2-4 months of Rh transfusion, the anti-Rh antibody concentration in Rh- human blood reaches the maximum. However, after 2-4 weeks of Rh+ blood transfusion, the amount of anti-Rh antibodies was relatively high enough to cause agglutination of the donor Rh(+) red blood cells to persist in the recipient's blood. If an Rh(-) person has never received an Rh+ blood transfusion, there will be no immediate reaction to their Rh+ transfusion. Rh blood group system antigens are inherited, and anti-Rh antibodies only appear in the Rh- body when immune with red blood cells containing the D (Rh+) antigen. The fetus can inherit the Rh factor from either parent. difference between mother and fetus are Rh incompatibility. However, it can affect the pregnancy of the mother and the fetus, for example, the mother is Rh negative but the fetus is Rh positive, during pregnancy, the pregnant woman needs to be monitored and taken care of. Having Rh negative blood type is not a disease and usually does not affect your health. Rh positive is the most common blood group. Depending on whether Rh antigens are present or not, each blood type is written after the name with a positive or negative symbol, for example A positive blood group is written as A+. If they don't, then they are considered Rh negative. If the cells have antigens, they will be considered Rh positive. This is another type of antigen found on red blood cells. In addition to the ABO blood group system, the blood group is also classified according to the Rh blood group, also known as the rhesus factor.
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