Children’s fever head not hot body heat may be related to the low environmental temperature. Fever refers to the role of thermogenic, the body hypothalamus thermoregulatory center dysfunction, so that the core temperature increases, we assess the child’s body temperature, should be measured in the trunk cadres (such as axillary) of the temperature, can not be based on the temperature of the forehead, because the forehead is exposed to the air, the ambient temperature is low, and the blood circulation is richer, is conducive to the dissipation of heat, so the head is not hot body hot phenomenon. The normal value of the armpit temperature: 36 ~ 37 ℃, if fever, should follow the doctor’s instructions for physical cooling, oral ibuprofen and other treatments. Children’s fever head not hot body heat may also have other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.