Hand tremor in the elderly may indicate Parkinson’s disease, idiopathic tremor, hepatic encephalopathy, hyperthyroidism and other diseases. 1. Parkinson’s disease: hand tremor in the elderly may indicate Parkinson’s disease caused by neurodegeneration. It usually starts in one side of the hand or upper limb, then involves the lower limb, and involves the opposite side in a few months or years. The tremor of the hand is often manifested as the movement of the metacarpophalangeal joints combined with the thumb, which is called “pill rolling” movement, which is the characteristic performance of the tremor of this disease. 2. idiopathic tremor: hand tremor in the elderly may suggest idiopathic tremor, which is relatively small and rapid, and can occur during voluntary activities and when maintaining a certain part of the body immobile. The tremor is most obvious in the upper limbs, and can be combined with muscle weakness and muscle ankylosis. 3. Hepatic encephalopathy and pulmonary encephalopathy: Hand tremor in the elderly can indicate hepatic encephalopathy and pulmonary encephalopathy. It is manifested as fluttering tremor. 4. Hyperthyroidism: hand tremor in the elderly may also indicate hyperthyroidism, manifested as fine tremor of the hands. The symptoms of hand tremor in the elderly should be timely medical care, clear causes, reasonable treatment.