Stages of Parkinson's Disease

Parkinson's Disease Stage III (Moderate Parkinson's Disease)

Stages III, IV, and V are when a person develops significant disability from Parkinson's disease. A person in stage III is considered to have moderate Parkinson's disease.
A person is categorized with stage III if the following are present:
  • Significant slowing of body movements
  • Early impairment of equilibrium when walking or standing
  • Generalized dysfunction that is moderately severe.
Stage III is when levodopa is usually first prescribed (see Parkinson's Disease Medications).

Stage IV (Advanced Parkinson's Disease)

A person is categorized with stage IV of the disease if the following are present:
  • Severe symptoms
  • The person can still walk to a limited extent
  • Rigidity and bradykinesia are present
  • Person is no longer able to live alone
  • Tremor may be less than earlier stages.
This stage is considered advanced Parkinson's disease.

Stage V Parkinson's Disease

A person is said to be in stage V if the following are present:
  • Cachectic stage (general reduction in vitality and strength of body and mind)
  • Invalidism complete
  • Person cannot stand or walk
  • Requires constant nursing care.
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Parkinson's Disease Information

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