The diagnosis is not difficult in a patient with typical symptoms of Parkinson’s disease. If a person has any two of the symptoms of resting tremor, muscle tonus and bradykinesia, and other clinical symptoms of Parkinson’s syndrome are excluded, and the symptoms improve significantly after taking levodopa preparations, a clinical diagnosis of Parkinson’s disease can be made. However, a true diagnosis of Parkinson’s disease requires a pathologic diagnosis of the brain tissue, in which the specific pathological changes of Parkinson’s disease can be found in brain tissue slices, such as: Louy bodies, which unfortunately can not be done in the patient’s preoperative period. Unfortunately, this cannot be done before surgery. There is no single instrument or test that can diagnose Parkinson’s disease, and some of the tests that doctors order, such as CT scans or MRIs, are done to rule out other diseases that can cause Parkinson’s symptoms. However, an experienced neurologist who has a good grasp of the diagnostic criteria for Parkinson’s disease should have no difficulty in diagnosing Parkinson’s disease. Diagnostic criteria Currently the international use of the British brain bank of Parkinson’s disease diagnostic criteria: 1, the inclusion of Parkinson’s disease criteria: (1) slow movement: the slow initiation of random movements. After the disease progresses, the speed and amplitude of repetitive movements are progressively reduced. (2) At least one of the following symptoms: (1) muscle rigidity; (2) resting tremor (4-6 Hz); (3) postural balance disorder (not due to primary visual, vestibular, cerebellar and proprioceptive dysfunction). The following conditions should be excluded from the diagnosis of PD: (1) a history of recurrent stroke episodes with stepwise progression characteristic of Parkinson’s disease; (2) a history of recurrent brain injury; (3) a clear history of encephalitis, with an oculomotor crisis; (4) the development of symptoms during the application of antipsychotic medication; (5) the illness of more than one relative; (6) a persistent improvement in the condition; (7) the manifestation of unilateral symptoms only three years after the onset of the disease; (8) progressive supranuclear gaze; (9) a progressive visual impairment; and (10) a progressive visual impairment, including the development of a visual impairment. (8) Progressive supranuclear gaze palsy; (9) Signs of cerebellar lesions; (10) Severe autonomic dysfunction in the early stages of the disease; (11) Babinski et al. sign (+); (12) CT showing brain tumors or traffic hydrocephalus; (13) Ineffective treatment with high-dose levodopa; (14) History of MPTP exposure. 3, support the diagnosis of Parkinson’s disease: the diagnosis of PD needs to have the following three or more conditions: (1) unilateral onset; (2) resting tremor; (3) gradual progression; (4) symptomatic asymmetry, with the onset side being more severe; (5) significant efficacy of levodopa treatment (70% to 100%); (6) levodopa causes severe anisotropia; (7) the efficacy of levodopa lasts for 5 years or longer; (8) clinical disease is not a problem; and (9) the treatment is not effective. (7) The effect of levodopa lasts for 5 years or more; (8) The clinical course is l0 years or more.