Is Parkinson's disease hereditary?

Parkinson's disease is not considered hereditary, although genetics may play a small role. Most people with Parkinson’s disease have no family history of Parkinson's.

Researchers have not found a specific gene that can be associated with Parkinson’s. There are some rare families that do inherit Parkinson’s, and they tend to be younger when symptoms begin. There is a slightly higher risk of Parkinson’s disease if one of your first-degree relatives (mother, father, sibling) has it.
Rarely, several members in a family develop Parkinson's disease (PD). In these families, we have been able on occasion to identify typographical errors in the genetic code (DNA mutations) that are the cause of the disease. However, these mutations are typically very rare in the general population. Generally, if you have a first-degree relative with PD (parent or sibling or child), your risk is doubled. However, that still constitutes only a 4% lifetime risk for PD.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.