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Living with Young-onset Parkinson disease

A rare form of Parkinson disease that begins between ages 21 and 45, with stiffness, tremor and slow movement.

Understanding Young-onset Parkinson disease

Young-onset Parkinson disease is a rare form of Parkinson disease that starts between ages 21 and 45.

Symptoms include stiff muscles, painful cramps followed by tremor, slow movement (bradykinesia), twisting muscle postures (dystonia), and walking problems with falls. There can be non-motor symptoms too. GARD says the disease usually progresses slowly, and most people respond well to dopamine-based medicines.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Tremor
  • Muscle stiffness (rigidity)
  • Balance problems
  • Involuntary movements (dyskinesia)
  • Depression
  • Apathy and hallucinations

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists and genetic specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Dysautonomia International and Parkinson & Movement Disorder Alliance may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: Dysautonomia International, Parkinson & Movement Disorder Alliance
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Dysautonomia International and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Could genetic testing show the cause of my Parkinson disease?
What medicines might help me, and what side effects should I watch for?
Which therapies can help with balance and falls?

Quick facts

Symptoms usually startAdult
InheritanceAutosomal Recessive

GARD says changes in genes cause this condition but doesn't name a gene here. It is listed as autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

GeneticNeurological

Also known as: early onset parkinson disease; early onset parkinson's disease; early-onset parkinson disease; yopd; young onset parkinson disease; young onset parkinson's disease

Patient organizations

Source: NIH GARD · Young-onset Parkinson diseaseGARD ID 16610 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Young-onset Parkinson disease.

Explore the Young-onset Parkinson disease blog

Explore research for Young-onset Parkinson disease

Explore actively recruiting Young-onset Parkinson disease studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Young-onset Parkinson disease with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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