If it is simply because of the change in ambient temperature, the child’s behavior because of the cold is not a cause for concern, and the symptoms can be relieved by increasing clothing. If there is no obvious cause for the child to tremble, it may be caused by calcium deficiency caused by the transient shaking, it is best to take the child to the hospital for a trace element calcium check, and check the vitamin D, vitamin D deficiency will also affect the absorption of calcium, trace elements in the calcium deficiency, the child will have hand and foot twitching and trembling, according to the actual results of the examination can be given to supplement. If the child has tremors for a longer period of time, accompanied by loss of consciousness, it is necessary to rule out head lesions and to conduct a detailed examination in the hospital to provide further treatment.