Parkinson's Disease

Stages of Parkinson's Disease

The progression of PD symptoms is described by using a system called the Hoehn and Yahr scale. The Hoehn and Yahr staging of Parkinson’s Disease is as follows:

Stage One: Symptoms appear on one side of the body only.

Stage Two: Symptoms appear on both sides of the body. No impairment of balance.

Stage Three: Balance impairment. Mild to moderate disease. Physically independent.

Stage Four: Severe disability, but still able to walk or stand unassisted.

Stage Five: Wheelchair-bound or bedridden unless assisted (8).

Article by Kona Vishnu, MS
Medical Writer,
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