Newborn jaundice is common in the first few days after birth, affecting nearly 60–80 per cent of babies worldwide. However, paediatricians warn that relying on direct sunlight to treat jaundice is unsafe and can put infants at serious risk, especially when severe forms of the condition go untreated.
Globally, more than 1.1 million babies develop severe hyperbilirubinaemia each year, leading to over 1.14 lakh deaths and lifelong disabilities, particularly in South Asia and sub-Saharan Africa.
What causes newborn jaundice
Newborn jaundice occurs when a baby’s immature liver struggles to remove bilirubin, a yellow pigment produced during the normal breakdown of red blood cells. In most cases, bilirubin levels fall naturally within days. However, if levels rise too high, the pigment can damage the brain, making timely treatment critical.
Medical experts stress that monitoring bilirubin levels and early intervention save lives.
Phototherapy remains the gold standard
The proven treatment for significant jaundice is phototherapy, which uses carefully calibrated blue-green light to break down bilirubin so it can be excreted safely through urine and stools. Hospitals use specialised equipment set at precise wavelengths and intensity.
Babies undergoing phototherapy are usually placed under the lights wearing only a diaper, with protective eye shields. This method has been used safely for decades and remains the standard of care.
Why sunlight is risky
Despite persistent myths, doctors strongly advise against placing babies in direct sunlight. Sunlight contains ultraviolet (UV) and infrared (IR) rays that can burn a newborn’s delicate skin and damage their eyes. Exposure is unpredictable, varying by time of day, weather and season, making it impossible to control dose or effectiveness.
Newborns also struggle to regulate body temperature, increasing the risk of overheating, dehydration or even hypothermia. Most critically, sunlight exposure can delay proper treatment, allowing bilirubin levels to rise to dangerous levels.
Some studies have explored filtered sunlight therapy in low-resource settings under strict medical supervision. Experts emphasise this is not the same as unfiltered home sunlight and should never replace medical care.
What parents should do
Paediatricians urge parents to consult a doctor immediately if a baby’s skin or eyes appear yellow. Mild cases may resolve with feeding and observation, but moderate to severe jaundice requires medical phototherapy.
Parents are advised not to place infants in sunlight, even near windows. As explained in medical literature on neonatal jaundice on Wikipedia, early diagnosis and appropriate treatment are key to preventing complications.
With increasing awareness and access to neonatal care, doctors say informed choices can prevent avoidable harm. When it comes to newborn health, experts agree that evidence-based treatment is always safer than traditional myths.