Neonatal jaundice is mainly divided into two categories, physiologic jaundice and pathologic jaundice, with different triggers for different types. 1. Physiological jaundice: this type of jaundice is usually due to the fact that newborns produce more bilirubin, and the liver’s ability to process bilirubin is low, resulting in bilirubin not being able to be excreted in a timely manner, resulting in a significant increase in intestinal absorption of bilirubin, which will lead to physiological jaundice. 2. Pathological jaundice: this type of jaundice is usually caused by vitamin E deficiency, infection, hemolysis, erythrocytosis, etc., which leads to the increase of intestinal and hepatic circulation and destruction of a large number of erythrocytes, thus resulting in the excessive production of bilirubin; or it may also be caused by the inborn metabolic defective disease, hepatitis, bile duct obstruction, etc, which results in the failure of bilirubin to excrete normally. When jaundice-related symptoms are found in newborns, it is recommended to consult a doctor as soon as possible to clearly diagnose whether it is physiological jaundice or pathological jaundice, and to carry out treatment and regulation under the guidance of the doctor.