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Earwax With an Unusual Odor May Help Detect Parkinson's Before It Worsens

Learn how an oily substance found in earwax has become a critical resource to detect Parkinson's disease.

ByJack Knudson
(Image Credit: wisely/Shutterstock) wisely/Shutterstock

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Earwax isn’t exactly the most appealing part of our bodies, but it may be an effective tool to detect Parkinson’s disease. Scientists are now taking a closer look inside ears to seize a valuable substance called sebum, a major component of earwax.

A study recently published in Analytical Chemistry has shown that sebum could be a telling sign of Parkinson’s disease, all because of a distinct smell it gives off in those diagnosed with the disease. While current methods of Parkinson's screening — such as clinical rating scales and neural imaging — can be costly, tests with sebum could offer an inexpensive alternative.

As a progressive neurodegenerative disease, Parkinson’s requires early intervention to ensure the best care possible. The disease causes deterioration of nerve cells in the brain, a process that sets off a series of worsening symptoms.

The disease starts with mild symptoms that generally don’t hinder daily activities: ...

  • Jack Knudson

    Jack Knudson is an assistant editor at Discover with a strong interest in environmental science and history. Before joining Discover in 2023, he studied journalism at the Scripps College of Communication at Ohio University and previously interned at Recycling Today magazine.

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