Symptoms:

• Abnormal and unusual movements
  • Head turning to shift eye position
  • Facial movements, including grimaces
  • Slow, uncontrolled movements
  • Quick, sudden, jerking movements of arms, legs, face, and other body parts
  • Unsteady gait
• Behavior changes
  • Antisocial behaviors
  • Hallucinations
  • Irritability
  • Moodiness
  • Restlessness or fidgeting
  • Paranoia
  • Psychosis
• Dementia that slowly gets worse, including
  • Loss of memory
  • Loss of judgment
  • Speech changes
  • Personality changes
  • Disorientation or confusion

Additional symptoms that may be associated with this disease:

• Anxiety, stress, and tension
• Difficulty swallowing
• Speech impairment

In children:

• Rigidity
• Slow movements
• Tremor

Signs and tests:

The doctor will perform a physical exam. The doctor may see signs of dementia and abnormal movements. Reflexes may be abnormal. The gait is often "prancing" and wide. Speech may be hesitant or enunciation poor.

A head CT scan may show loss of brain tissue, especially deep in the brain.

Other tests that may show signs of Huntington's disease include:

• Head MRI scan
• PET (isotope) scan of the brain

DNA marker studies may be available to determine if you carry the gene for Huntington's disease.