Neonatal jaundice is the most common disease in newborns, mainly characterized by yellowing of the skin. Generally, normal babies also exhibit jaundice, but this is a type of physiological jaundice. If the baby's jaundice appears early, such as within twenty-four hours, or if the jaundice progresses rapidly with significantly rising jaundice levels, or if it is particularly severe, or if the jaundice lasts for a long duration, or if the jaundice recurs after fading, these are considered pathological jaundice. It is generally advised for pathological jaundice to consult a neonatal specialist for a detailed examination of the baby to determine whether treatment intervention is necessary. If the jaundice is severe and parents are worried, it is recommended to go to the hospital in a timely manner, as hospitalization for treatment may be needed. If the jaundice level is too high and there are some pathological factors, and parents are unable to observe the baby well and the baby's condition is not good, and the jaundice continues to rise, it could potentially progress to the brain, leading to bilirubin encephalopathy, which is a serious complication. Therefore, high jaundice levels still require timely intervention. If the jaundice is at its peak, it is recommended to test for jaundice daily, as timely intervention when jaundice levels are high can prevent serious complications.