Finger shaking is not a precursor manifestation of disease, it may be a symptom of hyperthyroidism, idiopathic tremor or Parkinson’s disease; it may also be related to emotional stress. 1. Hyperthyroidism. The symptoms of hand shaking, need to be alert to the possibility of hyperthyroidism. Hyperthyroidism is a disease of the endocrine glands caused by excessive secretion of thyroid hormones by the thyroid glands. Symptoms such as palpitations, lethargy and irritability may also occur. 2. Idiopathic tremor. Idiopathic tremor, also known as primary tremor, is a kind of movement disorder with tremor as the only manifestation. Specifically, it can be manifested as postural tremor or locomotor tremor of the distal upper limbs, and hand shaking is its characteristic manifestation. 3. Parkinson’s disease. Parkinson’s disease is a common neurodegenerative disease in middle-aged and old-aged people, with resting tremor and muscle tonus as the main symptoms, and therefore hand tremor and other undesirable phenomena will also occur. In addition to the possibility of the above disease factors, people may also experience involuntary hand shaking when they are emotionally overstressed, which needs to be differentiated from the above disease factors. When the symptoms of finger shaking occur, you should go to the relevant hospital in time to consult the doctor, and actively find out the specific causes of the disease.