The yellow coloring of the skin and sclera of the eyes caused by increased bilirubin in the body is called “jaundice”. Bilirubin is a product of aging and death of red blood cells in the body. If too much bilirubin exceeds the processing capacity of the liver, the processing capacity of the liver cells for bilirubin decreases, and bilirubin cannot be excreted from the body, jaundice is caused. Neonatal jaundice is a disease characterized by yellowing of the skin, eyes and urine around the baby after birth, and is called fetal yellow in Chinese medicine. Neonatal hemolysis is the most common jaundice disorder, which is caused by hemolysis of fetal red blood cells due to the incompatibility between the blood type of the newborn and the mother, resulting in anemia, edema, hepatosplenomegaly, and hyperbilirubinemia. If a large amount of bilirubin in the body invades the nucleus of the central nerve cells of a person, the jaundice that occurs is more severe and is medically called nuclear jaundice, which has a higher mortality rate and is prone to sequelae.