Hyperviscosity of the newborn is the slowing and blockage of blood flow that results when there are too many red blood cells in an infant's blood.
Neonatal polycythemia
Shaken baby syndrome
Hemolytic disease of the newborn 
Hemolytic disease of the newborn
Anemia of prematurity
Haemorrhagic disease of the newborn
Neonatal malaria
Neonatal sepsis