The baby’s whole body is hot with fever, which is considered to be a normal symptom after the fever, or it may be caused by covering too thickly and wearing too much. Fever process due to the thermoregulatory center is affected, body temperature rises, the body metabolism speed up, more heat production may lead to the symptoms of the whole body hot. If it is in the period of rising body temperature, some babies may have cold hands and feet. If the fever process is not timely to do a good job of heat dissipation, to the baby covered too thick, overdressed, may also affect the body heat dissipation, the emergence of the whole body hot symptoms. After the baby fever needs timely physical cooling, such as toweling the body, but also warm baths, to avoid fever convulsions. The baby fever all over the body hot, there may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.