Physiological jaundice will subside naturally soon after birth, while pathological jaundice will affect mental development if it lasts for more than 3 weeks. Jaundice is more common in newborns, neonatal jaundice is divided into physiological jaundice and pathological jaundice, physiological jaundice subsides within 2 weeks after birth, if the patient develops severe jaundice after 2 weeks, consider whether it is pathological jaundice, which is related to the child’s hepatic and biliary system diseases. Such as whether the patient is due to biliary obstruction, whether due to breastfeeding, if the child’s serum bilirubin exceeds 15mgmg/dl, it is prone to nuclear jaundice, more than 3 weeks will affect the child’s intellectual development. For children after two weeks continue to appear jaundice deepen, if necessary need to draw blood to check children’s bilirubin value, if bilirubin is too high should positively consider taking medicine for yellow treatment, such as Yin gardenia yellow and other medicines to protect the liver, can consider in the incubator for children in blue light irradiation treatment. Positive liver protection treatment and blue light irradiation treatment, most children will have obvious improvement, jaundice more than 3 weeks will affect the intellectual development.