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| 1. |
Erythroblastosis foetalis |
| Answer» The antigens of the foetus do not get exposed to the {tex}{{Rh}^{-}}{/tex} blood of the mother in the first pregnancy. However, during the delivery of the first child, there is a possibility of exposure of the maternal blood to small amounts of the {tex}{{Rh}^{+}}{/tex} blood from the foetus. In such cases, the mother starts preparing antibodies against Rh antigen in her blood.In case of her subsequent pregnancies, the Rh antibodies from the mother {tex}({{Rh}^{-}}){/tex} can leak into the blood of the foetus {tex}{{Rh}^{+}}){/tex}. This could cause severe anaemia and jaundice to the baby. This condition is called erythroblastosis foetalis. | |