Just 20 years ago, most scientists believed that genetics played little or no role in Parkinson's disease. Then they discovered a genetic mutation in a family with Parkinson's. For most people, there is not a single genetic mutation that causes Parkinson's, but researchers have identified several genetic mutations that increase Parkinson's risk. Studying these genetic changes is growing our understanding of disease and driving toward new therapies to slow or stop disease progression.

Many people, both with and without Parkinson's, are interested in learning whether they carry these mutations. But thinking about genetic testing can raise various questions and concerns. Your doctor and a genetic counselor can help.

Watch the video to learn more about genetic testing and genetic counseling in Parkinson's.

Hear from people with Parkinson's about genetic testing and research.

Learn more about genetic counseling.

Join Fox Insight, MJFF's online clinical study gathering information on the daily experience of Parkinson's. Eligible participants may be offered genetic testing and counseling.

Ask the MD has been made possible through the leadership of members of our Parkinson's Disease Education Consortium in conjunction with The Albert B. Glickman Parkinson's Disease Education Program. These partners' support allows us to furnish high-quality educational content to the Parkinson's community while maintaining our commitment to allocate donor dollars to high-impact research. Editorial control of all Michael J. Fox Foundation-published content rests solely with the Foundation.