The cold hands and feet of infants and young children with fever may be caused by the indoor temperature is too low, or it may be caused by the period of fever and fever. 1. too low indoor temperature: infant fever hands and feet cold, may be because of the indoor temperature is too low and cause, because this period of time infants and young children body temperature center regulation is not too perfect. 2. In the period of fever and fever: if the infant is in the period of fever and fever, there may be a lot of sweating, skin moisture and other manifestations, which can cause cold hands and feet, nursing care should be strengthened to observe the situation. Infant fever hands and feet cold, 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.