Why are Rh negative and Rh positive incompatible?
A patient with Rh-negative blood cannot be given Rh-positive blood as the antigen-antibody REACTIONS WILL RESULT IN SEVERE consequences. In cases where a woman has Rh negative and her husband has Rh positive, the first child with Rh positive may be normal. But subsequently the woman may not conceive or may have repeated abortions. There may be intra uterine fetal death. If the child born is alive, it will suffer from a fatal disease called “Erythroblastosis Foetalis”. Now mothers can be given an injection of anti-D within 24 hours of the delivery of a Rh-positive child and thus protect the next baby from this catastrophe.
