I need to ask few more questions before answering your query. Early consultations can prevent complications. Kindly contact me on whatsapp chat  (84960595 six five) Dr Faisal Zoheb MBBS , MD PAEDIATRICS , PGPN (BOSTON), FELLOWSHIP IN NEONATOLOGY ( Newborn and vaccination specialist )

Consult with Pediatrician physically for further evaluation and treatment

Greetings For a healthy, term infant born at or after 38 weeks of gestation, a total serum bilirubin level of 16.3 mg/dL at approximately 11 days of life is typically below the standard clinical threshold required for phototherapy, provided the infant is well-appearing, feeding adequately, gaining weight, and presents with no additional neurotoxicity risk factors. When neonatal jaundice is prolonged past the first week of life, the differential diagnosis generally includes benign breastmilk jaundice, suboptimal intake jaundice, congenital hypothyroidism, or neonatal infection. While current management for a thriving, asymptomatic infant involves standard outpatient monitoring with a potential repeat bilirubin check in two weeks, caregivers must seek immediate medical assessment if clinical red flags develop. These urgent warning signs include lethargy, difficulty waking to feed, a high-pitched or abnormal cry, altered muscle tone such as hypotonia or hypertonia, fever, visibly worsening skin discoloration, reduced urinary output, deeply colored urine, or pale, clay-colored stools.

In a healthy term infant ≥38 weeks, 16.3 mg/dL at around 11 days is often below the phototherapy threshold, If the baby is well, feeding adequately, gaining weight, and has no risk factors, no immediate phototherapy Is required. * A few causes of prolonged jaundice could be breastfeeding/insufficient intake, breast-milk jaundice, hypothyroidism, infection, few other causes etc. Urgent assessment is needed if there is poor feeding, lethargy, abnormal cry, hypotonia/hypertonia, fever, worsening jaundice, or reduced urine output, high coloured urine, pale stools. Consult your paediatrician and if required you can get a retest after 2 weeks.

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hello,i'm Dr lasya,pediatrician. yellowish discoloration of eyes starts at even 2mg/dl and it takes around 2 weeks for total bilirubin to come to normal levels.there will be cut off values for each day of life.If your baby is a 37 or more than 37 week born baby without any risk factors and your baby doesnt fit into phototherapy criteria so need to worry.