Dysarthria

Impaired articulation due to weakness, incoordination, or altered control of the muscles innervated by the central or peripheral nervous system that are responsible for speech production.

Causes

• Central nervous system disorders

  • Stroke

  • Traumatic brain injury

  • Multiple sclerosis

  • Parkinson's disease

  • Amyotrophic lateral sclerosis (ALS)

  • Brain tumor

• Cranial nerve disorders

  • Cranial nerve palsy affecting speech muscles

• Neuromuscular disorders

  • Myasthenia gravis

  • Muscular dystrophy

  • Other motor neuron diseases

• Cerebellar disorders

  • Cerebellar stroke

  • Cerebellar degeneration

• Alcohol intoxication

• Medications/substances

  • Sedatives

  • Anticonvulsants

• Structural abnormalities

  • Oral or facial trauma

  • Head and neck tumors

• Infections/inflammatory disorders affecting the nervous system

  • Encephalitis

  • Meningitis

• Congenital disorders affecting neuromuscular control

  • Cerebral palsy