Skip to content

Parkinson's Disease Health Center

Font Size

Parkinson's Disease: Classification - Topic Overview

Parkinson's disease and parkinsonism

Parkinson's disease is named for Dr. James Parkinson, who in 1817 first described the features of this illness. Features of Parkinson's disease include tremor, slow movement (bradykinesia), and rigid muscles (rigidity). People with parkinsonism may have Parkinson's disease or another illness with similar symptoms.

Other conditions and diseases that cause parkinsonism may also cause symptoms that are not seen with Parkinson's disease. These conditions may be treated differently than Parkinson's disease. Unlike Parkinson's, some conditions that cause parkinsonism are reversible.

Recommended Related to Parkinson's

Parkinson's Disease

Important It is possible that the main title of the report Parkinson's Disease is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Read the Parkinson's Disease article > >

  • Parkinson's-plus syndromes are a group of disorders characterized by the degeneration of nerve cells in different parts of the brain. They include progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), and multiple system atrophy (MSA), among others. Parkinson's-plus syndromes have parkinsonian features as well as features that are not associated with Parkinson's disease. These syndromes usually respond poorly to levodopa or dopamine agonists.
  • Secondary or symptomatic parkinsonism describes the syndrome of parkinsonism when it occurs as the result of an identifiable cause. For example, certain medicines, brain tumors, strokes, infections (such as encephalitis), and toxins (such as carbon monoxide or manganese) can cause secondary parkinsonism.

Stages of Parkinson's disease

It may be helpful for people with Parkinson's disease and their families to be familiar with some of the ways the disease is described. Experts describe symptoms and stages of the disease differently.

Parkinson's disease sometimes is described as early, moderate, or advanced.

  • Early disease describes the stage when a person has a mild tremor or stiffness but is able to continue work or other normal daily activities. This often refers to a person who has been newly diagnosed with Parkinson's disease.
  • Moderate disease describes the stage when a person begins to experience limited movement. A person with moderate Parkinson's disease may have a mild to moderate tremor with slow movement.
  • Advanced disease describes the stage when a person is significantly limited in his or her activity, despite treatment. Daily changes in symptoms, medicine side effects that limit treatment, and loss of independence in activities of daily living are common. A person with advanced Parkinson's disease may have significant problems with posture, movement, and speech.
    1|2
    Next Article:

    Parkinson's Disease: Classification Topics

    Today on WebMD

    Parkinsons disease illustration
    Causes, symptoms, and treatments.
    hands on walker
    How does the disease progress?
     
    man with serious expression
    8 common questions and answers.
    intelligence quotient illustration
    What are the advantages of DBS?
     
    Parkinsons Disease Medications
    Article
    Questions Doctor Parkinsons
    Article
     
    Eating Right
    Article
    Parkinsons Exercise
    Article
     
    daughter consoling depressed mother
    Article
    senior man's hands
    Article
     
    Parkinsons Daily
    Article
    Acupunture
    Article
     

    WebMD Special Sections