Cold hands and feet in babies is a very common physiological phenomenon, because babies are in a stage of rapid growth and development, the whole body function coordination and regulation of the ability to be limited, often appear cold hands and feet situation. The common causes are mainly the following 1, the development of the pediatric nervous system is very immature, the poor regulation of the plant nerve function, resulting in the excitability of the sympathetic nerve innervated sweat glands, prone to sweating, sweat in the process of evaporation will take away the heat of the baby’s hands and feet, will feel cold, is generally normal. 2, small baby’s metabolism is relatively fast, the body temperature mediation ability is poor, in too cold or too hot environment is difficult to regulate the body temperature, affect the blood circulation, especially the peripheral circulation received the impact, then the peripheral vascular contraction, resulting in cold hands and feet. 3, infants and young children are weak, poor appetite and other reasons, so that the baby does not have enough energy, appear cold hands and feet. 4, the baby is not properly dressed, or cold weather, the baby wears less, it will feel cold, the hands and feet will naturally become cold. 5, baby sickness caused by, baby if fever, anemia, malnutrition and other symptoms, may also appear cold hands and feet phenomenon. If the baby appears cold hands and feet, but the overall mental state is normal, no fever, crying, vomiting, diarrhea and other performance, is generally normal, parents do not need to worry too much.