Jaundice is generally divided into physiological and pathological, but a simple baby with a light yellow facial chest and in good condition can be observed to see. In physiological jaundice, it will appear in 7-14 days, especially the eyes are more yellow, the feet will be worse, there are no clinical symptoms, and the general condition is good. Serum bilirubin does not exceed the normal value, which is physiological jaundice. Pathological jaundice, which continues to worsen, along with clinical symptoms of the associated disease and a serum bilirubin that exceeds normal values. This condition must be treated aggressively and symptomatically at the hospital to identify the jaundice in detail to avoid further aggravation of the condition. The first step is treatment, to light therapy, which is the most crucial. Therefore, if you find persistent aggravation of jaundice, you must be hospitalized for symptomatic treatment without delay.