Panic, hand tremor and anxiety may be caused by hyperthyroidism, hypoglycemia and mental factors. 1. Hyperthyroidism: due to the increase in blood circulation of thyroid hormones, which can lead to increased sympathetic excitability, resulting in symptoms such as trembling hands, palpitations and other symptoms, as well as anxiety, irritability and other mental symptoms. 2. Hypoglycemia: due to poor diet, drinking a lot of alcohol, and improper use of medication in diabetic patients can lead to the occurrence of hypoglycemia, which activates the sympathetic nervous system, resulting in palpitations, anxiety, tremor, sweating and other clinical manifestations. 3. Mental factors: nervousness, anxiety and other mental factors can also lead to the appearance of the above symptoms. When the above symptoms occur, timely diagnosis and treatment should be made to avoid delaying the condition.