According to statistics, about 80% of newborns develop jaundice, and the course of the disease varies according to the individual, the type of jaundice, and the specific measures taken, so the time for the jaundice to subside also varies. Most newborns will develop jaundice after birth, generally 2-3 days later, the skin mucous membranes, the whites of the eyes yellow, 4-5 days the heaviest, may involve the trunk and proximal extremities, 7-10 days gradually subsided, in addition to this if the newborn does not have other abnormalities, the spirit of good milk, normal stool, belong to the physiological jaundice, 70% to 80% of newborns will appear this phenomenon, jaundice lasts for a long time up to If the jaundice lasts for 2 to 3 weeks, but generally not more than 3 weeks, the jaundice should be treated by a doctor in time. Pathological jaundice appears within 24 hours of birth, the degree of heavy development is fast, not only the face yellow, the white of the eyes yellow may appear yellow palms, feet, and accompanied by poor spirit, drowsiness, refusal of milk, high fever, convulsions, screaming and other symptoms, the duration of pathological jaundice is longer full-term infants are generally more than 2 weeks, premature infants are generally more than 4 weeks, should be actively treated to help jaundice to subside as soon as possible, the specific time to subside depends on the treatment The specific time of remission depends on the treatment time and the way of treatment. The treatment is active, the remission is fast. Regarding baby jaundice, physiological jaundice usually subsides gradually in 7 to 10 days, usually no more than 2 weeks. Pathological jaundice lasts longer, usually more than 2 weeks in full-term babies and more than 4 weeks in preterm babies, and is highly related to the child’s general condition and treatment.