Palm fever in children may be caused by physiologic fever due to high basal metabolic rate, or pathologic fever due to pyrexia or hyperthyroidism. 1. Physiological palpitation fever: children’s basal metabolism is much higher than that of adults, and the demand for calories and the consumption of calories rise more. Therefore, it is normal for children to have fever in the palm of their hands, and parents only need to observe whether their children have other discomforts. 2. Fever: the child’s palms are hot there is another reason, it is possible that the child is really hot, this time we need to measure the body temperature, the general axillary temperature of more than 37.3 ℃, indicating that the child has a fever. 3. Hyperthyroidism: it can also cause fever in children’s palms, and there will be a combination of other symptoms, such as excessive sweating, irritability, panic and unexplained weight loss. There are other causes of palmar fever in children, so it is advisable to consult a doctor to find out the cause of the fever and to cooperate with the doctor in administering medication if necessary.