Jaundice, also known as Icterus, is a yellowish or greenish pigmentation of the skin and eyes due to high bilirubin levels. Bilirubin is formed by the breakdown of red blood cells in the body. The liver helps to excrete it. If the liver is not working properly excretion will not happen and leads to high bilirubin level in the body. Jaundice in babies occurs in over half in the first week following birth and does not pose a serious threat in most.