What is the typical pattern of jaundice spread in newborns?

Jaundice in newborns typically presents in a pattern that begins on the head and then progresses downward to the chest and extremities. This pattern is due to the distribution of bilirubin, which is a byproduct of the breakdown of red blood cells. In newborns, especially those who may experience physiological jaundice, the elevated levels of bilirubin can manifest first in the face and then spread to the trunk and limbs.

Observing this progression helps healthcare providers assess the severity of jaundice. The higher the bilirubin levels, the further down the body it will spread, which indicates the number of bilirubin deposits under the skin. Therefore, starting from the head and moving toward the chest and extremities is a hallmark observation in the clinical evaluation of jaundice in newborns. This understanding is crucial for effective monitoring and management of neonatal jaundice.