Neonatal jaundice is a common symptom during the newborn period. It can be a symptom of normal growth and development or an indication of certain diseases. Jaundice is divided into physiological and pathological jaundice. Physiological jaundice generally appears two to three days after birth, reaches its peak around four to five days, and subsides around ten days. Generally, the duration of jaundice in babies does not exceed two weeks, and the situation is usually manageable. Once physiological jaundice has subsided, it does not recur. If jaundice reappears after it has completely resolved, it is necessary to be cautious as it may indicate pathological jaundice. In such cases, it is advisable to visit the hospital where doctors can conduct relevant tests based on the baby's condition. If it is confirmed that the pathological jaundice needs treatment, it is recommended to intervene and treat it early.