Children with fever and cold hands and feet may be infectious diseases, cold stimulation and other reasons, need to be specifically analyzed. 1. Infectious diseases: If the child is infected by pathogens, it will lead to inflammatory reactions in the body, resulting in an increase in body temperature, when the body temperature is in the ascending phase, the blood circulation of the extremities is less than that of the internal organs, which will be manifested in the case of the body fever and cold hands and feet. 2. Cold stimulation: If the child is stimulated by cold, the body’s nervous system will respond accordingly, accelerating the heat production, at this time, the blood circulation in the limbs is poor, it will be manifested as the body fever and cold hands and feet. Children with fever and cold hands and feet, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.