Newborn jaundice—a yellowing of the skin caused by the baby's liver struggling to process bilirubin, a natural pigment—affects most babies in their first week of life. While usually harmless, untreated severe jaundice can cause lasting brain damage, which is why doctors monitor it closely.
Researchers analysed 109 studies from 30 countries and found that across many communities, families and healthcare workers still recommend placing newborns in direct, unfiltered sunlight for 15–30 minutes daily (typically around 8–10 am) to treat jaundice. In some regions, up to 100% of parents believe sunlight helps, and in certain settings, 84% of nurse-midwives suggested this approach to families.
A trusted practice—but with hidden risks
What makes this finding striking is that sunlight exposure for jaundice isn't just a family folk remedy; it's being professionally recommended in many parts of the world. The research shows that healthcare workers themselves often endorse it, lending it medical credibility. However, the review found that potential harms—sunburn, dehydration, overheating, and babies missing critical medical appointments—are rarely discussed with parents or formally tracked in health records.
Why the practice persists in Asia
The review included 22 studies from South Asia, showing that in our region, traditional beliefs about natural treatments often coexist with modern medicine. Families may default to sunlight exposure when they lack easy access to proper medical treatment, or when they trust traditional methods more than hospitals. Even in developed settings like Singapore, older relatives and community networks may recommend this approach based on generations of practice.
Singapore families have better options
Modern phototherapy machines—the medical standard—deliver precise wavelengths of light in controlled doses, making them far more effective than sunlight and free from the risks of uncontrolled exposure. Singapore's healthcare system provides access to this safe, evidence-based treatment in hospitals and clinics. If your baby is diagnosed with jaundice, your doctor will recommend the right treatment based on your baby's age and bilirubin levels, determined by a simple blood test. If your baby needs phototherapy, your hospital team will guide you through the process and monitor recovery closely.