The normal body temperature range of a newborn baby is between 36.5°C and 37.5°C. As long as it is not higher than 37.5°C and not lower than 36°C, it is considered to be a normal body temperature range. As long as the baby is in good spirits and feeding well, it is normal for the body temperature to stay within this range. If the body temperature exceeds 37.5 ℃, consider a fever, you can take physical cooling methods, appropriate loose bag cooling, do not give the baby to wear too thick, or do not cover too thick, to see through these methods after the body temperature can not be reduced. If the baby’s body temperature is low, can be improved by keeping warm, put more clothes on the baby, or pay attention to warm hands and feet, if necessary, need to go to the hospital to let the doctor check, to rule out the underlying disease.