Tongue tremor refers to the involuntary trembling of the tongue in a patient at rest. It appears as a slow rhythmic tremor, with 4 to 6 tremors per second, with variable amplitude, and intensifies with mental stress. Many patients also have postural tremors of 5 to 8 times per second. Tongue tremor is most often seen in patients with Parkinson’s disease and is a symptom of damage to the nervous system. It may also be caused by damage to the brain nerves or by stimulation of the brain nerves due to long-term drug use, and is characterized by a slow rhythmic tremor, with 4 to 6 tremors per second of variable amplitude, which may increase with stress. Many patients also have postural tremors of 5 to 8 times per second. Parkinson’s disease, commonly known as Alzheimer’s disease, is a progressive brain disease caused by the destruction of cells in the brain that control movement. The loss of cells in the brain that produce the enzyme dopamine is the main cause of Parkinson’s disease, and once the loss reaches 80 percent, symptoms may begin to appear. Tongue tremors are the main manifestation. Parkinson’s disease can be detected by high performance liquid chromatography (HPLC) with reduced levels of HVA (homovanillic acid) in cerebrospinal fluid and urine. Cranial CT may show widening of the cerebral sulcus and enlargement of the ventricles.
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