Jaundice is a common condition of newborns, many parents because they do not understand, often by the jaundice on the newborn, think the child is out of a big thing. Worried to take the child to the hospital for a checkup, but the doctor said that this is physiological jaundice, will soon recover, this time, the newborn parents nervous heart will be put down. Newborn jaundice is indeed the majority of physiological, but there is also pathological jaundice, once appeared if not treated in a timely manner, will jeopardize the child’s physical health. So how to determine whether it is physiological jaundice or pathological jaundice? First, according to the time of appearance of jaundice, physiological jaundice appears early, but also after 24 hours of birth, while pathological jaundice usually appears within 24 hours of birth. Second, according to the development speed of jaundice, you can check the bilirubin in the hospital, the bilirubin is more than 12mg/dl, or rises too fast, rises more than 5mg/dl per day, which is the pathologic jaundice, the physiologic development is slower. Third, according to the duration of jaundice, physiological jaundice in newborns usually lasts for 14 days and then disappears on its own, if it lasts for more than 2 weeks or 4 weeks, or the jaundice recurs after it disappears, most of the cases are pathologic jaundice. According to the location of jaundice, physiological jaundice is usually manifested in the trunk, sclera and proximal limbs, usually not elbows and knees. Pathological jaundice is too serious and affects the whole body. Fifth, according to the color of jaundice, physiological jaundice can be judged by external observation, light jaundice is light flowery color, heavy color is darker, but the skin is reddish and yellowish. Sixth, according to the impact of jaundice on the child, physiological jaundice generally does not affect the baby, the baby’s body temperature and appetite are very normal, will not affect the baby’s growth and development. Pathological jaundice is different, it will seriously affect the child’s body temperature and appetite, which in turn affects the healthy development.