What causes dysarthria and how can it be treated?

Symptom Database

Dysarthria is a speech disorder that affects a person’s ability to articulate words and communicate effectively. It is a motor speech disorder caused by neurological damage or impairment. Individuals with dysarthria may experience difficulties with pronunciation, volume, and rhythm of speech, making it challenging for others to understand them. In this article, we will explore the causes of dysarthria and discuss various treatment options available to improve speech and communication abilities.

Causes of Dysarthria

Dysarthria can be caused by a variety of factors, including:

  • Stroke: One of the most common causes of dysarthria is a stroke, which can damage the brain’s motor control centers responsible for speech production.
  • Brain injury: Traumatic brain injuries resulting from accidents or falls can also lead to dysarthria.
  • Neurological disorders: Conditions such as Parkinson’s disease, multiple sclerosis, and cerebral palsy can cause dysarthria due to the impact on the nervous system.
  • Head and neck cancer: Tumors in the head and neck region can affect the muscles involved in speech production, leading to dysarthria.
  • Degenerative diseases: Progressive conditions like amyotrophic lateral sclerosis (ALS) and Huntington’s disease can result in dysarthria as the muscles weaken over time.

Treatment Options for Dysarthria

While dysarthria cannot be completely cured, there are several treatment options available to manage and improve speech difficulties:

Speech Therapy

Speech therapy, also known as speech and language therapy, is a common approach to treating dysarthria. A speech therapist works with individuals to develop strategies and exercises that target specific speech difficulties. These may include:

  • Articulation exercises: Practicing specific sounds and movements to improve speech clarity.
  • Breathing exercises: Focusing on breath control and support to enhance vocal projection.
  • Intensive therapy programs: Intensive therapy sessions that involve repetitive practice to strengthen speech muscles and improve overall communication abilities.

Assistive Devices

In some cases, individuals with dysarthria may benefit from using assistive devices to aid their communication. These devices can range from simple tools like alphabet boards or communication charts to more advanced technologies such as speech-generating devices. These devices allow individuals to select words or phrases using buttons or touchscreens, which are then spoken aloud by the device.

Augmentative and Alternative Communication (AAC)

AAC refers to various methods and strategies used to supplement or replace speech for individuals with communication difficulties. This can include sign language, gestures, or the use of visual aids like picture cards or communication apps. AAC can be particularly helpful for individuals with severe dysarthria who struggle to produce intelligible speech.


In some cases, medication may be prescribed to manage underlying conditions that contribute to dysarthria. For example, medications to control muscle spasms or reduce muscle stiffness can help improve speech clarity. However, it is important to note that medication alone is not a cure for dysarthria and should be used in conjunction with other treatment approaches.

Living with Dysarthria

Living with dysarthria can present various challenges, but there are strategies individuals can employ to enhance communication:

  • Speak slowly and clearly: Slowing down speech and enunciating words can improve clarity.
  • Use gestures and facial expressions: Non-verbal cues can help convey meaning and supplement speech.
  • Inform others: Educating friends, family, and coworkers about dysarthria can foster understanding and patience.
  • Join support groups: Connecting with others who have dysarthria can provide emotional support and practical advice.

It is important to remember that dysarthria affects each individual differently, and treatment plans should be tailored to meet specific needs. Regular communication with healthcare professionals, including speech therapists, can help monitor progress and make necessary adjustments to treatment approaches.

In conclusion, dysarthria is a speech disorder characterized by communication difficulties and articulation impairments. While it cannot be cured, various treatment options such as speech therapy, assistive devices, AAC, and medication can help individuals with dysarthria improve their speech and communication abilities. By employing strategies to enhance communication and seeking support from healthcare professionals, individuals with dysarthria can lead fulfilling lives and effectively express themselves.

Haroon Rashid, MD
Rate author
Urgent Care Center of Arlington, VA
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