Early childhood is 1-3 years after birth, and generally jaundice occurs mostly in the neonatal period. If the jaundice index is high in the neonatal period, the effects are as follows: 1, easy to occur bilirubin encephalopathy; 2, bilirubin-induced neurological dysfunction: hearing impairment, severe can cause deafness, some can cause high audio hearing loss; cause some babies sunset sign, and some babies can cause neurological dysfunction such as lethargy, stupor, and convulsive manifestations, which can lead to cerebral palsy in the later stages of their postnatal period, salivation, and hand-foot movement This can lead to cerebral palsy, salivation, tetany, and other sequelae of varying degrees. In the late neonatal period, if the jaundice index is too high, watch out for cholestatic liver disease. If the bilirubin level is too high and persistent within the blood for too long, it can easily cause biliary obstruction, or even biliary atresia due to sticky bile, which can cause liver function damage and biliary tract damage to the young infant.