Newborn 7 days jaundice 20mg/dl is serious, need to consider pathological jaundice, should be actively treated, if not actively treated may lead to kernel jaundice and other complications. Newborns 7 days 20mg/dl need to be considered for pathological jaundice, physiological jaundice is generally not more than 15mg/dl, pathological jaundice need to clarify the cause of jaundice, common hemolytic jaundice and infection, pathological jaundice is a more serious situation, need blue light treatment, or even the need for blood transfusion therapy. Newborns 5~7 days after birth is the peak period of physiological jaundice, but usually not more than 15mg/dl, more than this upper limit for pathological jaundice, need for blue light irradiation treatment, not active treatment can lead to bilirubin encephalopathy, and even life-threatening, so it is more serious. The jaundice value of 20mg/dl on the 7th day of the newborn’s life, it is recommended that the patient actively consult the doctor and follow the doctor’s instructions.