The causes of hand trembling in the elderly are mainly the following: 1, physiological causes, including emotional excitement, tension, hunger, cold, etc. The symptoms of hand trembling caused by these causes can disappear after the removal of the trigger. 2, Parkinson’s syndrome, Parkinson’s syndrome is the most common disease causing hand trembling in the elderly. Parkinson’s syndrome patients have resting tremors in their hands, and the symptoms of hand tremors are reduced after activity, cerebrovascular disease, encephalitis, poisoning and other causes can cause Parkinson’s syndrome. 3, primary tremor, also known as senile tremor, is also more common in these patients, and hand tremors can occur during exercise, but not in a quiet state. 4, hyperthyroidism, alcoholism, liver function damage can cause the elderly to appear Hand trembling.