High total bile acids in babies may be caused by physiological elevation, biliary atresia and hepatitis. 1. Physiological elevation: In daily life, after the baby eats, the total bile acid will be transiently high, which is a normal physiological phenomenon, no need to worry too much. 2. Biliary atresia: if the baby has congenital or other causes of biliary atresia, so that the bile acid can not be completely discharged, resulting in the accumulation of bile in the body, which leads to the baby’s high total bile acid. 3. Hepatitis: hepatitis is also one of the causes of high total bile acids, when the liver function is damaged, it will cause metabolic disorders, so that the baby’s total bile acids into the blood, resulting in high total bile acids. The baby total bile acid high may also have other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.