Newborn baby’s body temperature at 37.2 ℃ is a normal body temperature, as long as it does not exceed 37.5 ℃ is the normal range, not less than 36 ℃ does not belong to hypothermia, at the same time, we should pay attention to proper warmth, avoid getting cold, pay attention to not wearing too thick, indoor temperature should be kept at about 25 ℃, do not let the baby get cold, do not go to places where people gather to avoid cross infection. In addition, newborns should pay attention to drink more water to maintain the normal thermoregulatory function. If your baby’s temperature exceeds 37.5℃, you need to actively look for the cause and clarify whether there is a viral or bacterial infection in order to carry out targeted treatment, and if necessary, you need to have a blood test to see the extent of the infection.