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What Causes Dysarthria

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Dysarthria has many possible causes, but in general, it results from a neurological injury to whichever part of the motor-speech system is affected. Brain injuries, strokes, and certain degenerative diseases can cause lesions in the parts of the brain that plan and execute movement of the skeletal muscles, which would include head and neck muscles involved in speech. Causes of dysarthria fall into three categories: brain damage, nerve damage, and neuromuscular diseases. Brain damage can be caused by brain tumors, Huntington’s disease, strokes, multiple sclerosis, amyotrophic lateral sclerosis (ALS, also known as Lou Gehrig’s disease), dementia, Parkinson’s disease, and general brain injuries. Nerves that supply muscles involved in speech could

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