The possible causes of hand trembling in secondary school students are hyperthyroidism, anxiety disorders, extrapyramidal diseases, etc., as follows: First, hyperthyroidism: the most common is hyperthyroidism, hyperthyroidism is due to excessive excitation of sympathetic nerves in the body, which can lead to the phenomenon of hand trembling, it is recommended to check the thyroid function in the endocrinology department of the hospital, if it is clear that there is hyperthyroidism, it can be relieved by taking hyperthyroidism drugs to relieve. Second, anxiety disorders: to find out whether there are psychosomatic factors, especially anxiety patients, many secondary school students have anxiety disorders, in the emotional tension, anxiety, can also appear the phenomenon of hand trembling. It can be relieved by taking insulin, and anti-anxiety drugs, such as lorazepam and other drugs. Third, organic diseases: especially the extravertebral system diseases in the brain, can appear the phenomenon of hand trembling. Fourth, idiopathic tremor In short, secondary school students who have shaking must go to the neurology department of the hospital for a clear diagnosis.