Parkinson’s syndrome, also known as tremor paralysis, is a common neurodegenerative disease in middle-aged and elderly people, and the precursor symptoms mainly include: 1, motor symptoms: before the onset of the disease, the patient may have slow movement, slow fine movements such as unbuttoning, tying shoes, etc., and changes in posture and gait, such as walking with the affected side of the upper limb swinging arm amplitude decreased or disappeared, and lower limb dragging and so on. 2, resting tremor: the patient is generally at rest, and the tremor starts at the distal end of one upper limb when movement is reduced or stopped. 2, stationary tremor: patients usually have tremor at rest, starting from the distal end of one side of the upper limb, decreasing or stopping when exercising, and intensifying when tense or agitated; 3, emotional changes: patients with Parkinson’s syndrome may have anxiety, depression, obsessive-compulsive, and even serious hallucinations, hallucinations and other precursor symptoms; 4, other: some patients with Parkinson’s syndrome have symptoms such as decreased sense of smell, sleep disorders, constipation, and so on, before the onset of Parkinson’s syndrome.