Infants are prone to cold hands and feet for more reasons. In most cases, given the poor peripheral circulation of children, it is very easy to have cold hands and feet if the outside temperature is low. 1, infants and children with cold hands and feet, the main reasons to consider the following aspects: (1) poor peripheral circulation: infants under the influence of cold, hunger, disease and other reasons may appear in the peripheral circulation supply of blood, insufficient heat supply, cold hands and feet. (2) Poor thermoregulation ability: Infants and young children’s thermoregulation center is not well developed and is influenced by the surrounding environment, so they may have cold hands and feet. (3) Underdressed: Infants and young children have poor thermoregulatory ability and are affected by the surrounding environment, and are prone to cold hands and feet when the ambient temperature is cold. (4) Diseases: Diseases such as fever, anemia and serious infections may cause cold hands and feet in infants and children. 2, for the above reasons, parents should do the following measures: (1) must be enough to keep warm, infants and young children’s clothing standards, back warm warm warm hands and feet warm, adult meditation is not cold to wear is the child wearing clothes, while not too tight clothes, must be loose, too tight clothing is not conducive to blood circulation, more likely to lead to poor peripheral circulation of children. (2) suitable environment, winter should be in 22 to 24 degrees Celsius, humidity at about 40%, the child is suitable for living in such an environment temperature. (3) Pathological diseases: peripheral vasoconstriction during fever is likely to cause cold hands and feet, so it is necessary to take the body temperature diligently, while rubbing warm hands and feet to make the temperature stable. Other symptoms such as hypothyroidism, iron deficiency anemia, malnutrition can be accompanied by poor mental status, poor diet, pallor, etc. Then, in such cases, you need to seek immediate medical attention and give your child symptomatic treatment after diagnosis.