Hand and foot tremors during sleep in 10-year-old children may have physiological causes, or may be due to calcium deficiency or epilepsy. It needs to be judged according to the duration of the symptoms and the accompanying symptoms. If the symptoms of hand trembling occur frequently, you should go to the hospital for a detailed physical examination in time to clarify the causes that trigger the twitching. I. Physiological factors: If the shaking is only occasional once or twice, it is considered to be caused by dreaming, or due to physiological stimulation of nerves briefly occurring muscle spasms, usually without treatment. Second, disease factors: 1, vitamin D deficiency: If the child’s body lacks vitamin D and calcium and other trace elements, there will be symptoms of hand and foot trembling and even cramps. It is necessary to take oral vitamin D and calcium preparations under the guidance of a doctor. You can also eat more calcium-rich foods such as shrimp and dates in your daily diet, and keep an appropriate amount of outdoor activities because sunlight exposure can replenish the vitamin D needed by the body; 2. Epilepsy: In addition to involuntary shaking, it is usually accompanied by symptoms such as upturned eyes and closed teeth, which is considered a possibility of epilepsy. You need to go to the hospital promptly and take anti-epileptic drugs, such as carbamazepine, as prescribed by the doctor. If the onset of seizures is prolonged or frequent, surgical treatment may also be considered.