Tremors of the tongue are usually seen in patients with Parkinson’s disease and are a symptom of damage to the nervous system. It may also be caused by damage to the brain nerves, or it may be caused by stimulation of the brain nerves due to long-term drug use. It manifests as a slow rhythmic tremor, with 4 to 6 tremors per second, with variable amplitude, and increases with stress. Many patients also have postural tremors of 5 to 8 times per second. Diagnosis of tongue tremor due to Parkinson’s disease: 1. Decreased serum renin activity and tyrosine content. Decreased NE and 5-HT content in the substantia nigra and striatum, and 50% lower glutamate decarboxylase activity compared to controls are diagnostic methods for Parkinson’s. 2, blood cerebrospinal fluid examination: dopamine levels can be detected to reduce the concentration of its metabolite homovanillic acid. 5-hydroxytryptamine metabolite with -hydroxyindoleacetic acid content is reduced, dopamine subterranean cavity? The cerebrospinal fluid is significantly lower in growth inhibition and -aminobutyric acid level is reduced, etc. 3, CT, MRI imaging performance is also the diagnosis of Parkinson’s, because Parkinson’s is a degenerative disease of the central nervous system, pathological changes are mainly in the substantia nigra, striatum, pallidum, caudate nucleus and cerebral cortex, etc. Therefore, CT imaging performance, in addition to generalized brain atrophy, sometimes visible calcification of the basal ganglia. 4, biochemical tests are also diagnostic methods for Parkinson’s, and the release immunoassay detects reduced levels of CSF growth inhibitor. Urinary DA and its metabolites 3-methoxytyramine, 5-HT and adrenaline, NE are also reduced. 5, Parkinson’s diagnosis is also a decrease in GABA in CSF and a significant decrease in the content of HVA, a metabolite of DA and 5-HT in CSF.