Finger trembling may be a sign of Parkinson’s disease, hyperthyroidism, anxiety, etc.; it may also be a sign of physiological causes such as emotional excitement, tension, and exertion. 1. Parkinson’s disease may be characterized by trembling of the fingers. Parkinson’s disease may also be characterized by a gradual slowing of movement, difficulty in walking, and stiffness of the limbs. 2. Patients with hyperthyroidism may also show trembling of the fingers, as well as hyperphagia, lethargy, and agitation. 3. Idiopathic tremor is the most common cause of finger shaking, which mainly manifests as postural and motor tremor of the hands, head and other parts of the body. 4. Some patients with anxiety disorders may also exhibit finger shaking. 5. Finger trembling may also be caused by some physiological reasons, such as emotional excitement, excessive stress, excessive tension. After overwork, the neuromuscular control of the fingers is weakened, and finger shaking can also occur. However, these causes usually disappear spontaneously after rest. When the above manifestations occur, it is necessary to go to the hospital for a clear diagnosis by the doctor and targeted treatment.