For a newborn baby, jaundice is physiologically jaundiced if it is in some of the following patterns: firstly, the newborn baby is in a relatively good mental state and is eating milk normally. Secondly, for a full-term baby, the jaundice level is less than 12 mg/dL; for a premature baby, the jaundice level is less than 15 mg/dL; and the rise in jaundice is less than 5 mg/dL per day, which are characteristics of physiological jaundice. If the newborn’s jaundice falls into this category, it is a normal phenomenon and only requires dynamic observation without special treatment. If the jaundice index is significantly higher than this level and appears very early, within 24 hours of birth, this is often pathological jaundice and prompt intervention is required.