Inherited hand tremor, there are two possible diseases: first, primary tremor, also known as idiopathic tremor. This kind of tremor is more obvious in the distal part of the upper limbs, or the head, and there are usually no other clinical manifestations except tremor, postural tremor, fine activities are affected, and the tremor can be reduced or disappeared in a quiet state. Some patients are sensitive to alcohol, and the symptoms can be reduced after drinking alcohol. Second, familial Parkinson’s disease. Symptoms of Parkinson’s disease appear in youth, hand tremor is dominated by resting tremor, in quiet immobility, the typical rubbing pill-like tremor appears, the symptoms can be reduced during activity, and disappear after sleeping. The symptoms of hand tremor can be reduced by oral administration of methyldopa and benzhexol.