Hemolytic disease of the newborn
Hemolytic disease of the newborn (HDN), also called erythroblastosis fetalis, is a blood disorder that occurs when the blood types of a mother and baby are incompatible. The Anemia and Red Blood Cell Disorders Program at Children’s Hospital Boston provides comprehensive treatment and management of HDN.
- HDN is relatively uncommon, affecting approximately 4,000 babies a year in the United States.
- It is more likely to occur during a mother’s second or subsequent pregnancy.
- There are two causes, Rh incompatibility and ABO incompatibility.
- HDN due to Rh incompatibility occurs more frequently.
- HDN can be treated during pregnancy or after the baby is born.
It is very preventable.