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Neurology

Parkinson's disease

Parkinson's disease is a condition in which parts of the brain become damaged over many years. It can cause tremor, slow movement and stiffness, and there is support and treatment to help.

At a glance

  • Parkinson's affects the brain and develops gradually over years.
  • Main symptoms are tremor, slow movement and muscle stiffness.
  • Treatments and therapies can help manage symptoms.
On this page (5 sections)

Overview

Parkinson’s disease is a condition where nerve cells in part of the brain are gradually lost over many years, reducing a chemical called dopamine that helps control movement [1].

Symptoms

The three main symptoms are shaking (tremor), slow movement, and stiff and inflexible muscles. People may also have other symptoms such as problems with balance, sleep, mood or sense of smell [1].

Causes

The symptoms are caused by a loss of nerve cells in the brain. The exact reason is not fully understood, but a combination of genetic and environmental factors is thought to be involved [1].

Management

There is currently no cure, but treatments can help control symptoms and maintain quality of life. These include medicines, physiotherapy and occupational therapy, and in some cases surgery [1].

When to see a doctor

See a GP if you are worried you may have symptoms of Parkinson’s disease, so you can be assessed and referred to a specialist if needed [1].

Get medical helpIf you have severe or worsening symptoms, seek medical help without delay. In an emergency call 999.

Sources

  1. NHS. Parkinson's disease (opens in new tab) Last reviewed 3 November 2022. Accessed 12 August 2026.

About this page

Written by
Consumer Health editorial team
Medical review
Pending — this page has not yet been reviewed by a named clinician. Read our medical review policy.
Last updated
August 2026
Next review due
August 2027

Important: This information is for general guidance only and does not replace professional medical advice. It is not intended to diagnose or treat any condition. Always speak to a qualified healthcare professional — such as your GP or pharmacist — for advice about your individual circumstances, and do not start, stop or change any prescribed treatment based only on this page. If you think you are having a medical emergency, call 999. Consumer Health is an independent health-information resource and is not the NHS or a government body.

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