Depending on the cause of dysarthria, symptoms may improve, stay the same, or get worse slowly or quickly.
Patients with amyotrophic lateral sclerosis (ALS or Lou Gehrig's disease) eventually lose the ability to speak.
Few people with Parkinson's disease or multiple sclerosis lose the ability to speak.
Dysarthria caused by medication or poorly fitting dentures can be reversed.
Dysarthria caused by a stroke or brain injury will not get worse, and may improve.
Dysarthria after surgery to the tongue or voice box should not get worse, and may improve with therapy. The severity of dysarthria depends on what type and how much tissue was removed.
What to expect if I have Dysarthria  (Outlook/Prognosis)?
Depending on the cause of dysarthria, symptoms may improve, stay the same, or get worse slowly or quickly.
Patients with amyotrophic lateral sclerosis ({{ORGANIZATION}} or {{NAME}} disease) eventually lose the ability to speak.
Few people with Parkinson's disease or multiple sclerosis lose the ability to speak.
Dysarthria caused by medication or poorly fitting dentures can be reversed.
Dysarthria caused by a stroke or brain injury will not get worse, and may improve.
{{NAME}} after surgery to the tongue or voice box should not get worse, and may improve with therapy. The severity of dysarthria depends on what type and how much tissue was removed.