Jaundice is usually expressed in two ways: the first is what we often call the numerical value, saying how much jaundice the child has, the unit is mg/dl, the other is to check the bilirubin in the liver function, the unit is μmol/l, the conversion between them is multiplied by 17. For example, if you use a jaundice meter in the hospital to measure jaundice is 10, the corresponding unit of bilirubin μmol/l is multiplied by 17, which is 170 μmol/l. Generally, what we call jaundice is the value measured with a jaundice meter, for example, a child with jaundice of a dozen, which is more commonly used, and the other is the liver function inside. The causes of jaundice in children are more and more complex, most of them are caused by viral infections, and then there is hemolysis, and there is neonatal sepsis serious infections can also cause jaundice.