The severity of jaundice depends not only on the level of jaundice, but also on the age of the newborn. If the jaundice value is 13.5mg/dL within 3 days after birth, it is more serious and needs active intervention, according to the situation, choose blue light irradiation to reduce jaundice, and apply albumin intravenously to reduce free bilirubin. If it is hemolytic jaundice, intravenous gammaglobulin is needed. If it is caused by infection, active anti-infection is needed. 3-7 days after birth, the value of jaundice is 13.5mg/dL, which is moderately elevated, you can take oral medication with sunlight irradiation to reduce jaundice. Usually, the jaundice will gradually subside in about 7 days. If the jaundice remains at 13.5mg/dL for more than a week after birth, it is recommended to consult a doctor to find out the cause.