Is Parkinson's Disease Hereditary?

Parkinson's disease (PD) is a progressive neurological condition that affects millions of people worldwide. One common and important question asked by those newly diagnosed—or those with a family history of the disease—is: "Is Parkinson's disease hereditary?" Understanding the role genetics plays in PD can help individuals and families better navigate risks, treatments, and support options.

​Is Parkinson's Disease Hereditary?
The short answer is: sometimes, but not always. While Parkinson’s disease can be hereditary, most cases are not directly inherited.

About 10–15% of people with Parkinson’s have a family history of the disease. In these cases, genetic mutations—such as changes in the LRRK2, PARK7, PINK1, PRKN, and SNCA genes—can be passed down from parent to child, potentially increasing the risk of developing PD.

However, the vast majority of Parkinson’s cases are considered sporadic, meaning they occur in people with no known family history or inherited genetic mutation. This suggests that a combination of genetic predisposition and environmental factors—such as exposure to pesticides or head trauma—may contribute to the development of Parkinson’s.
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In other words, having a relative with Parkinson’s does not guarantee that you will develop the condition, but it may slightly increase your risk. Likewise, many people with Parkinson’s do not have any known genetic link at all.

What Can You Do if Parkinson’s Runs in Your Family?
If you have a family history of Parkinson’s, it’s natural to feel concerned. Fortunately, there are proactive steps you can take:

• Genetic counseling: A genetic counselor can help assess your personal risk and discuss the pros and cons of genetic testing.
• Healthy lifestyle: Regular exercise, a balanced diet, and cognitive stimulation may lower your overall risk.
• Stay informed: Being aware of the early signs of Parkinson’s—such as tremors, slowed movement, or stiffness—can lead to earlier diagnosis and better management.

Whether or not your case is hereditary, having a strong support system makes a big difference in living well with Parkinson’s.

PASWFL: Empowering Families and Individuals Living with PD
For more than twenty-five years, the Parkinson’s Association of Southwest Florida (PASWFL) has been a trusted community resource for those touched by Parkinson’s disease and related neurological conditions. Their mission is to improve quality of life, educate, enrich, and empower individuals and care partners throughout Southwest Florida.

Each week, PASWFL offers over 25 free programs and support groups to help individuals with PD live well. These include exercise classes, support groups, wellness education, and more. Best of all, there are no fees to join—their mission is fueled by compassion and community, not cost.
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If you or a loved one is living with Parkinson’s, you’re not alone. Support, education, and empowerment are just a click away.

• Click here to sign up for PASWFL’s free e-newsletter
• Click here to become a free member today

To learn more, visit www.parkinsonassociationswfl.org