Baby fever, hot palms and cold feet may be due to the imperfect development of the baby’s nervous system, resulting in autonomic nerve disorders appearing symptoms. The baby in the fever, especially when the body temperature is more than 38.5 ℃, it is easy to appear palms hot feet cold situation, may be due to the baby is relatively young, the development of the nervous system is not mature, so in the high fever at the beginning of the baby’s limbs at the end of the small blood vessels are in the spasm contraction state, so it will appear in the hands of the palms of the heat, feet cold, or the palms and feet of the situation of the cold. When the baby fever palms hot feet cold, need to give the baby in time to measure the temperature, if the temperature exceeds 38.5 ℃, need to be under the guidance of the doctor to take the relevant antipyretic drugs for treatment, such as ibuprofen, acetaminophen, etc., and at the same time need to carry out the relevant examination, in order to clarify the cause of the disease, standardize the treatment.