How long does physiological jaundice in newborns typically last?
Apr 14, 2022
Source: Cainiu Health
Dr. Ma Yan
Introduction
In newborns with physiological jaundice, the yellowing of the skin and eyes typically begins to fade around one week after birth and resolves completely within two weeks at the latest. If jaundice persists beyond two weeks, it is classified as pathological jaundice. During this period, close observation of the infant’s skin and scleral jaundice, as well as feeding behavior, is essential. Infants with poor feeding, lethargy, or constipation may require pharmacologic interventions to effectively reduce bilirubin levels.
Jaundice is a common symptom and clinical sign resulting from impaired bilirubin metabolism, leading to elevated serum bilirubin levels. Clinically, it manifests as yellow discoloration of the sclera, mucous membranes, skin, and other tissues. How long does physiological jaundice in newborns typically last?
How long does physiological jaundice in newborns typically last?
In newborns with physiological jaundice, the yellowing usually begins to fade around one week after birth and resolves completely within two weeks at the latest. If jaundice persists beyond two weeks, it is considered pathological. During this period, close observation of the infant’s skin and scleral yellowing, as well as feeding patterns, is essential. Poor feeding, lethargy, or constipation warrant medical evaluation and may necessitate pharmacologic interventions to enhance bilirubin excretion via stool and urine. In preterm infants, jaundice typically appears on days 3–5 after birth and resolves by days 7–9; however, it may persist up to 3–4 weeks.
Generally, neonatal jaundice resolves entirely by the time the infant reaches one month of age. Physiological jaundice occurs because newborns have relatively immature bilirubin metabolism—while bilirubin production is high, their capacity for processing and eliminating it remains limited, resulting in visible yellow pigment deposition on the skin.
It is recommended that infants with physiological jaundice receive moderate sunlight exposure, which helps promote bilirubin metabolism. Additionally, pregnant mothers should also get adequate sun exposure, as this may help reduce the severity of physiological jaundice in their newborns. We hope this information is helpful to you.
