I'm here to provide you with some insights into newborn jaundice, but please keep in mind that any serious concerns should be addressed with a healthcare professional. Jaundice in newborns is indeed common and usually occurs due to elevated levels of bilirubin, a breakdown product of red blood cells. This condition is not always indicative of liver issues; it can also arise from factors like immature liver function, breastfeeding challenges, or increased red blood cell breakdown due to Rh incompatibility or bruising at birth. To diagnose jaundice, doctors typically measure the bilirubin level through a blood test or a transcutaneous bilirubinometer, which gives a quick indication of levels. Mild jaundice usually requires no treatment, whereas higher levels may necessitate intervention to prevent complications like kernicterus, where bilirubin levels become dangerously high. Phototherapy is indeed the standard treatment, where the baby is placed under special lights that help break down bilirubin in the skin. The duration of therapy varies; you might see improvements within 24 hours, but treatment can last from a few hours to several days, depending on bilirubin levels. Phototherapy is generally safe, with minimal risks, though some babies may experience mild skin irritation. If jaundice becomes severe and isn’t responding to treatment, exchange transfusion may be necessary. Breastfeeding can contribute to jaundice if it's insufficient, as proper feeding helps eliminate bilirubin through stool. Encourage frequent breastfeeding or formula feeding to ensure hydration and nutrition. Typically, newborn jaundice resolves within one to two weeks, but watch for worsening symptoms, such as increased yellowing of the skin, lethargy, poor feeding, or a high-pitched cry, which may indicate worsening conditions requiring immediate medical attention. Always consult your pediatrician for personalized guidance and to monitor your baby’s progress closely.