Jaundice in two-month-old babies can be seen in breast milk jaundice, gastrointestinal surgical diseases, etc., which need to be analyzed and judged according to the baby’s condition. 1. Breast milk jaundice: this kind of baby jaundice appeared in about 1 week after birth, can last 1~3 months, general growth and development is good, jaundice is mild to moderate, and there are no other abnormal symptoms, such as fever, decoction of potter’s clay stools and so on. 2. Gastrointestinal surgical diseases: such as congenital biliary atresia, clinical yellowing of the skin, stools are clay-like abnormal stools, serum bilirubin is obviously elevated, improve the abdominal ultrasound can assist in the diagnosis of some of the baby’s condition can be serious cirrhosis, etc., and need to be detected as early as possible early treatment. 3. Infection: such as cytomegalovirus infection, affecting the metabolism of bilirubin in the liver, the baby can also appear the above phenomenon, perfect liver function tests can be seen in the alanine aminotransferase and other elevated. 4. Other: such as congenital hypothyroidism, in the early stage of the disease symptoms may not be typical, with the age of growth, mental retardation, etc., in the early stage of the disease may be accompanied by jaundice delayed, perfect thyroid function can be seen abnormal. For these babies, it is recommended to consult a specialist to determine the cause of jaundice, taking into account their medical history and the severity of jaundice.