Normal Range and Causes of Neonatal Jaundice

Neonatal jaundice occurs because the liver enzyme system in newborns has not fully developed, unable to convert bilirubin in time. Additionally, the sterile condition of the newborn’s intestines affects bilirubin metabolism, leading to an increase in bilirubin concentration in the blood. This temporary condition is known as physiological jaundice.
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Normal Range of Neonatal Jaundice Index

Under normal circumstances, the neonatal jaundice index should not exceed 12.9. High levels of jaundice may lead to serious complications such as jaundice encephalopathy. Parents are advised to take their child to the hospital for examination and treatment if the jaundice index exceeds the normal range. It is recommended that parents consult a doctor promptly for professional advice.
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