Cold hands and feet and a hot head are relatively common reactions in children with fever. In this case, attention should be paid to taking the child’s temperature diligently, drinking more water appropriately, and if necessary, taking antipyretic drugs for treatment under the guidance of a doctor. If a child’s fever persists, it is recommended to go to the hospital for routine blood tests to rule out any viral infections and to clarify the cause of the illness before treatment. The causes of fever in children with cold hands and feet and head heat are mainly seen in the following areas: 1. local microcirculatory disorders: common in children under 3 years of age, mainly because children’s extremities contain less blood than the internal organs, due to insufficient blood supply to the extremities, and easy to appear cold hands and feet, but the head is rich in blood vessels, blood flow is fast, so the phenomenon of head heat will appear when the fever; 2. disorders in the thermoregulatory center: when children When a child has a fever, especially during the period of rising body temperature, the autonomic nerves responsible for managing vasodilation and contraction are prone to dysfunction, which may lead to small capillaries at the ends of the limbs being in a state of spasmodic contraction at the beginning of the fever, thus causing the child to have cold hands and feet and a hot head; 3, low ambient temperature: If the ambient temperature is low, the child’s hands and feet are exposed to the air for a longer time. If the ambient temperature is low, the child’s hands and feet are exposed to the air for a longer period of time, the phenomenon of a hot head but cold hands and feet will also occur.