The 5 Stages of Parkinson’s

Jun 23, 2026


Medically reviewed by Nancy Hammond, M.D. — Written by Kristeen Cherney — Updated on June 6, 2025

Key takeaways

  • Stage 1 is the mildest form, where symptoms don’t interfere with daily tasks, tremors affect only one side of the body, and prescribed medications can effectively minimize and reduce symptoms, while Stage 2 is a moderate form with more noticeable symptoms
  • Stage 3 marks a major turning point in disease progression. It is characterized by loss of balance, decreased reflexes, slower overall movements, and an increased likelihood of falls, though people can still complete daily tasks with help, while Stage 4 is characterized by an increasing loss of independence and need for assistance.
  • Stage 5 is the most advanced, requiring wheelchairs and around-the-clock assistance, with up to 50% of people experiencing confusion, hallucinations, and delusions, and between 50% and 80% developing dementia

What is Parkinson’s disease?

Parkinson’s disease (Parkinsonism) is marked by the presence of certain recognizable symptoms. These include uncontrollable shaking or tremor, lack of coordination, and speaking difficulties. However, symptoms vary and may worsen as the disease progresses.

The main symptoms of Parkinson’s include:

  • uncontrollable shaking and tremors
  • slowed movement (bradykinesia)
  • balance difficulties and eventual problems standing up
  • stiffness in limbs

Many doctors who diagnose this brain disorder rely on the Hoehn and Yahr rating scale to classify the severity of symptoms. The scale is broken into five stages based on disease progression. The five stages help doctors evaluate how far the disease has advanced.

Stage 1

Stage 1 is the mildest form of Parkinson’s. At this stage, there may be symptoms, but they’re not severe enough to interfere with daily tasks and overall lifestyle. In fact, the symptoms are so minimal at this stage that they’re often missed. But family and friends may notice changes in your posture, walk, or facial expressions.

A distinct symptom of stage 1 Parkinson’s is that tremors and other difficulties in movement are generally exclusive to one side of the body. Prescribed medications can work effectively to minimize and reduce symptoms at this stage.

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