Causes of Dysarthria

Simple Causes: Various simple causes of difficulty with speech articulation include:

Speech Disorders: Causes of poor speech articulation include:

Brain Disorders: Various conditions may affect the brain, leading to poor speech articulation, such as:

Facial or Oral Nerve Disorders: A disorder of the nerves in the face may lead to facial paralysis often one-sided facial paralysis, (or to mouth paralysis or tongue paralysis), which may cause dysarthria:

Neuromuscular Diseases: Some progressive neuromuscular diseases or nerve diseases may cause progressive muscle weakness, including of the speech-related muscles, causing dysarthria:

Progressive Dysarthria: Various chronic diseases may cause a person’s speech to progressively worsen, such as:

Temporary Dysarthria: Disorders that may cause temporary or transient speech problems include:

Toxic Causes of Speech Difficulty: Speech articulation problems (dysarthria) may result from exposure to some toxic substances:

Similar Symptoms: See also the causes of:

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Back to: « Dysarthria

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developmental - when it occurs as a result of brain damage before or during birth, such as in cerebral palsy

Source: NHS Choices UK1

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acquired - when it occurs as the result of brain changes later in life, such as damage caused by a stroke, head injury or brain tumour, or a progressive condition such as Parkinson's disease or motor neurone disease

Source: NHS Choices UK2

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What causes dysarthria?

The muscles used for speech are controlled by the brain and nervous system. Dysarthria can develop if either of these is damaged in some way.

Dysarthria can either be:

Dysarthria in children is usually developmental, while dysarthria in adults is often acquired, although both types can affect people of any age.

Whether dysarthria will improve with speech and language therapy depends on the cause and the extent of the brain damage or dysfunction. Some causes remain stable, while others may worsen over time.

Source: NHS Choices UK3

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Stroke: Slurred speech due to weakness or incoordination of the muscles involved in speaking is called dysarthria, and is not a problem with language. Because it can result from any weakness or incoordination of the speech muscles, dysarthria can arise from damage to either side of the brain.

Source: NINDS (NIH)4

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Multiple sclerosis: Speech may also become slurred, or difficult to understand (dysarthria).

Source: NHS Choices UK5

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Ankyloglossia: tongue-tie can sometimes cause problems such as speech difficulties and difficulty eating certain foods.

Source: NHS Choices UK6

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Some causes may include:7 Causes of Dysarthria:

Causes List for Dysarthria

List of possible causes of Dysarthria or similar symptoms may include:8

... Full Causes List for Dysarthria »

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  1. Source: NHS Choices UK: conditions/ dysarthria/ 
  2. ibid.
  3. ibid.
  4. Source: NINDS (NIH): disorders/ stroke/ detail_stroke.htm
  5. Source: NHS Choices UK: conditions/ multiple-sclerosis/ symptoms/ 
  6. Source: NHS Choices UK: conditions/ tongue-tie/ 
  7. Source: Human Phenotype Ontology
  8. Source: Algorithmically Generated List

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Note: This site is for informational purposes only and is not medical advice. See your doctor or other qualified medical professional for all your medical needs.