If the baby’s blood type is different from the mother’s blood type, the jaundice is considered to be hemolytic jaundice; if the two blood types are the same, it is considered to be physiological jaundice, which needs to be examined in the pediatric department of the hospital to clarify the cause and then treated. 1. Hemolytic jaundice: a kind of homozygous immune hemolytic reaction caused by the incompatibility of mother and child blood types, jaundice appears on the 2nd-3rd day after birth, manifested as the baby’s skin Apparent yellow staining, and gradually aggravated, 5-7 days can reach its peak, and serum bilirubin levels rise rapidly in a short period of time, and in severe cases can develop into nuclear jaundice. Treatment can be actively phototherapy under the guidance of the doctor, can also take oral Yinjian Huang oral solution, if necessary, need to exchange blood treatment; 2, physiological jaundice: more with the child was born bilirubin production than excretion related, can be manifested as the baby 2-3 days after birth, the face began to yellow, the color is light, can be involved in the trunk, but rarely reach the limbs, 4-6 days to reach the peak, the most obvious yellow staining. Physiological jaundice generally does not require special treatment, full-term babies can disappear on their own within 2 weeks, premature babies need 3-4 weeks, if it can not subside, you can take oral Yin Gardenia Huang oral solution. Attention baby jaundice, during the treatment period, parents can take the baby to the sun to absorb ultraviolet light; feeding can give the baby more water, which is conducive to jaundice subsidence.