Newborn baby diapers do not have a fixed replacement interval and frequency, as long as the newborn baby appeared to urinate or defecate, you should change the diaper in time, but also pay attention to hip care. Due to the newborn’s kidney function is not yet fully developed, after birth urination is more, the newborn care do not interval fixed time to change the diaper. You need to observe the diaper from time to time for urine bloat, feces and other conditions. It is recommended that parents can observe the condition of their newborn’s diaper every half an hour or an hour, and if urine or feces is found, it should be changed immediately. If the diaper is changed according to a fixed time interval and is not cleaned up in time after the newborn has urinated or defecated, urine and feces may irritate the skin of the newborn’s buttocks, resulting in buttock redness and itching. If the fecal matter is not found for a long time and the irritation continues for a long period of time, in severe cases, it may lead to erosion of the skin of the newborn’s buttocks, which may become infected.