The yellow color of a newborn baby’s face is normal for 2-3 days after birth, reaching a peak in 4-6 days and slowly fading back to normal in 7-10 days, which is a normal physiological jaundice. If the child is a low weight baby or a premature baby, the jaundice will be prolonged, but it is also a normal phenomenon, premature babies usually recede within 4 weeks, if it still does not recede, you can go to the hospital to see if it is pathological jaundice, 60%-80% of full-term babies will have jaundice. Jaundice can be found on the face and neck, so don’t worry too much.