The cause of hand tremor is very complex, according to the specific cause may need to hang neurology, psychiatry, endocrinology, orthopedics and other departments. 1. Neurology: The most common cause of hand tremor in the elderly needs to consider Parkinson’s syndrome, which is a neurological movement disorder. Therefore, it is necessary to go to the Department of Neurology for consultation. 2. Psychiatry: Adverse reactions to certain antischizophrenic drugs may also cause symptoms of hand tremor, common drugs include lithium carbonate, which requires further consultation in the psychiatry department. Stress-related hand tremors are associated with psychiatric factors and also require psychiatric consultation. 3. Endocrinology: A variety of endocrine diseases can cause hand tremors, such as hyperthyroidism, hypoglycemia and so on. 4. Orthopedics: Hand tremor can be caused by cervical spondylosis that compresses the nerves, and hand tremor can also be caused by overloading of the hands, resulting in strain on the hand muscles, which requires orthopedic consultation. Patients with trembling hands need to seek timely medical treatment and systematic treatment under the guidance of a doctor.