Tremor of the feet is one of the features of Parkinson’s disease. Parkinson’s disease, also known as idiopathic Parkinson’s disease (PD), or Parkinson’s disease, also known as paralysis agitans (shaking palsy), is a common neurodegenerative disease of the middle-aged and elderly, and is the most common extrapyramidal disease of the middle-aged and elderly. The prevalence is 1000 per 100,000 people over 65 years of age and increases with age, slightly more in men than in women. The main clinical features of the disease: resting tremor, delayed and reduced movements, increased muscle tone, and postural instability are the main characteristics. In fact, as early as Parkinson’s book “Tremor Paralysis”, it was described that “some cases of PD may have rheumatic pain before the onset of motor symptoms”, and in the same year Charcot also described the same in two cases of PD. It was not until the 1970s that Fletcher and Snider and others described the preclinical symptoms and sensory disturbances of PD in more detail. In the 1980s, William et al. combined electrophysiology to classify sensory disorders, and he reported that sensory symptoms were mainly unprovoked numbness, tingling, ankylosis and burning sensations at the joints of the affected limbs, mainly at the wrist and ankle, which were mostly intermittent or wandering at the beginning and became fixed at a later stage. Routine neurological examination showed no obvious objective sensory abnormalities, and electrophysiological examination revealed somatosensory evoked potentials (SEPs) in some cases, especially prolonged latency and conduction time in the lower extremities. In the early 1990s, a retrospective survey of 150 patients showed that all patients experienced sensory abnormalities in the affected limbs to varying degrees prior to the onset of clinical symptoms of PD, and that these abnormalities could persist, but were not in parallel with motor deficits. The electrophysiological examination is mainly somatosensory, cortical evoked potentials with cortical delay and conduction delay and prolonged latency. 2, restless limb and easy fatigue: In addition to subjective sensory abnormalities, about 1/2 of the patients had experienced indescribable discomfort such as soreness, swelling, numbness or pain in the affected limb in the early stage, and this discomfort mostly occurred or was obvious when resting after exertion, and could be relieved after knocking or pounding, which was cool like the manifestation of restless leg syndrome. On the other hand, the affected limbs of some patients are prone to fatigue, especially the wrist and shoulder joints of the upper limbs, and the ankle and knee joints of the lower limbs, which can have a slight tremor that is difficult to detect after exertion. These symptoms can be effective with general analgesics at the beginning, but after a few months, they have no effect. At this time, the effect of dopa drugs can be obvious.