Are there any less common causes of jaundice in newborns?

Understanding Jaundice in Newborns

Jaundice is a common condition in newborns, characterised by a yellowish tint to the skin and eyes. It occurs due to elevated levels of bilirubin, a byproduct of the normal breakdown of red blood cells. Most cases of jaundice in newborns are mild and resolve naturally.

In the UK, jaundice affects about 60% of term and 80% of preterm infants. While many instances of jaundice are benign, there are some less common causes that may require medical attention. Identifying these is crucial for ensuring appropriate care.

Less Common Causes of Jaundice

Aside from the typical physiological jaundice, there are several less common causes. These include conditions such as breast milk jaundice, which may continue longer than the usual neonatal jaundice. This type occurs in about 1% to 2% of breastfed infants, typically after the first week of life.

An additional uncommon cause is hemolytic disease due to blood group incompatibility. This can occur when the newborn's blood type is incompatible with the mother's, potentially leading to increased bilirubin levels. Prompt diagnosis and treatment are essential to avoid complications.

Metabolic disorders, such as Crigler-Najjar syndrome, can also cause jaundice in newborns. This genetic condition affects the enzyme responsible for breaking down bilirubin, leading to persistent jaundice that requires medical management.

Infections and Liver Conditions

Infections, although less common, can lead to jaundice in newborns. Infectious agents like rubella and cytomegalovirus might be responsible. These conditions can interfere with bilirubin processing, necessitating specialist intervention.

Liver conditions, though rare in newborns, can also cause jaundice. One possible condition is biliary atresia, a blockage in the liver's bile ducts. Early detection is crucial, as untreated biliary atresia can lead to severe liver damage.

When to Seek Medical Advice

If jaundice develops within the first 24 hours post-birth, it is considered atypical and warrants immediate medical evaluation. Prolonged jaundice beyond two weeks in term infants, or three weeks in preterm infants, should also be assessed by a healthcare professional.

Parents should observe their newborns for any unusual symptoms accompanying jaundice, such as lethargy, poor feeding, or a high-pitched cry. Consulting a healthcare provider can ensure any rare underlying causes are adequately addressed.

Conclusion

While jaundice is a common condition in newborns, it's important to be aware of less common causes. These can have significant health implications if left unrecognised. In the UK, healthcare systems are equipped to diagnose and manage these conditions effectively.

Understanding the potential causes and when to seek help can empower parents to ensure their newborns receive appropriate care. Awareness and timely intervention are key to preventing complications associated with less common causes of neonatal jaundice.