2. Causes of Dysarthria

Dysarthria interferes with the brain and nervous system's ability to control the muscles used for speech. If the damage occurs at or before birth, as it does for babies with cerebral palsy, this qualifies as developmental dysarthria. When the damage occurs later in life because of a stroke, brain tumor, head injury, or progressive condition, doctors diagnose acquired dysarthria. Developmental dysarthria is the more common of the two.

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