Infants with sweaty, cold hands and feet may be related to physiological sweating, external factors, micronutrient deficiency, hyperhidrosis or physical weakness, and it is recommended to choose a regular hospital for consultation and treatment. Common causes 1, physiological sweating: infant metabolism is more vigorous, the plant nerve function is not perfect, the vagus nerve is easily excited, causing sweating hands and feet, and infant hands and feet exposed, resulting in cold, generally do not require special treatment, parents need to closely observe, if abnormal performance, it is recommended to seek medical attention; 2, external factors: infant clothing, quilt is too thick, or the weather changes faster, the body can not make timely The baby’s own body temperature is generally high, so there is no need to add too much clothing, parents can obtain information on weather changes, timely add and subtract clothing for children; 3, trace element deficiency: generally speaking, the lack of vitamin D or calcium in infants can be manifested as increased neuroexcitability, resulting in sweaty hands and feet. Under the guidance of a doctor, the mother can take vitamin D or calcium preparations orally, and can also be supplemented by consuming foods rich in vitamin D, such as milk, egg yolk, cod liver oil, etc. The time spent in the sun can be increased appropriately, which can help the mother’s trace elements, and the infant can supplement the trace elements in her body through the mother’s milk, thus relieving the trace element deficiency; 4, hyperhidrosis: mostly related to mental Parents should maintain a harmonious family atmosphere and also create a good sleep environment for the child to avoid nervousness; 5. It is recommended that the mother or the infant maintain a balanced nutrition, eat foods containing protein, vitamins and trace elements such as zinc and calcium, such as lean meat, milk, nuts, fresh fruits and vegetables, etc. Parents should pay attention to the daily care of their infants and dry their bodies in time after sweating to avoid inducing diseases after getting cold. When sweating is high, it is necessary to replenish fluids in time, such as drinking light salt water, etc.