Source:http://linkedlifedata.com/resource/umls/id/C1504421
NCI: A complication during pregnancy; it occurs when the mother is Rh-negative and the infant is Rh-positive. The mother's body develops antibodies against the fetal red blood cells leading to their destruction. This complication generally does not affect first-born Rh-positive babies. Rh-positive newborn babies from subsequent pregnancies develop complications of Rh incompatibility which include hemolysis, jaundice, enlarged liver and spleen, petechiae, hypotonia, neurologic damage, and heart problems.,MEDLINEPLUS: <p>There are four major blood types: A, B, O, and AB. The types are based on substances on the surface of the blood cells. Another blood type is called Rh. Rh factor is a protein on red blood cells. Most people are Rh-positive; they have Rh factor. Rh-negative people don't have it. Rh factor is inherited though genes.</p><p>When you're pregnant, blood from your baby can cross into your bloodstream, especially during delivery. If you're Rh-negative and your baby is Rh-positive, your body will react