How is it physiological or pathological if a newborn baby has high jaundice within a few days of birth?

Patient's question:

No

Doctor's answer:

In your case, it may be physiological jaundice. In mild cases, jaundice appears pale yellow, limited to the face and neck, or may affect the trunk, and the sclera may also turn yellow, lasting for 2 to 3 days before fading by the 5th to 6th day, with the skin color returning to normal. In severe cases, jaundice similarly starts from the head and spreads to the feet, affecting the entire body, and substances like vomit and cerebrospinal fluid may also turn yellow. The duration can last for more than a week, with some premature infants even continuing for up to 4 weeks, during which their stool remains yellow and bilirubin is absent in the urine. It is recommended to use blue light therapy, which can be effective.