The sudden shaking and weakness of the patient’s hands may be caused by acute cerebrovascular disease or Parkinson’s disease, hyperthyroidism, idiopathic tremor, or metabolic encephalopathy, which should be analyzed in the context of the cause of the patient’s illness. In the first aspect, if the patient has sudden hand tremor and weakness, accompanied by panic and sweating performance, and the hunger feeling is more serious, it is considered to be caused by hypoglycemia. Secondly, if the patient has sudden hand trembling and weakness with mudball-like changes and resting tremor, it is considered to be caused by Parkinson’s disease. Thirdly, if the patient has sudden hand trembling and weakness in both hands, accompanied by symptoms of panic, sweating, ability to eat and easy hunger, it is considered to be caused by hyperthyroidism. In the fourth aspect, if the patient appears with improper posture, it is considered to be caused by cervical spondylosis compressing nerve roots. In the fifth aspect, if the patient suddenly develops symptoms of unilateral hand trembling and weakness, accompanied by numbness of limbs and crooked mouth, it is considered to be caused by acute cerebrovascular disease.