Is Lewy Body Dementia the Same as Parkinson’s Disease? Key Differences You Should Know

When a loved one begins to show signs of memory loss, movement difficulties, or changes in behavior, families often wonder: Is it Parkinson’s Disease or something else? One condition that is often confused with Parkinson’s is Lewy Body Dementia (LBD). Because the two disorders share overlapping symptoms, it’s common for people to feel uncertain or overwhelmed.

👉 So, is Lewy Body Dementia the same as Parkinson’s Disease? Continue reading to discover the differences, their interconnection, and why support is crucial for navigating both effectively.

What is Lewy Body Dementia?
Lewy Body Dementia is a progressive brain disorder caused by abnormal protein deposits (called Lewy bodies) that affect both movement and cognition. People with LBD may experience memory problems, confusion, hallucinations, sleep disturbances, and movement symptoms similar to Parkinson’s. It is the second most common type of dementia after Alzheimer’s disease.

How Does It Compare to Parkinson’s Disease?
Parkinson’s Disease is primarily a movement disorder. Symptoms usually begin with tremors, stiffness, and slowed movement. Cognitive changes may occur in the later stages, but they are not always present early on.
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By contrast, Lewy Body Dementia often presents with cognitive changes first, such as confusion or visual hallucinations, alongside Parkinson-like motor symptoms.
In short:

• Parkinson’s Disease (PD): Starts with movement issues → may develop dementia later.
• Lewy Body Dementia (LBD): Starts with dementia → includes Parkinson-like motor symptoms.

Why the Confusion?
The confusion comes from the fact that both conditions involve Lewy bodies in the brain. Because of this, some researchers consider them part of the same spectrum of disorders. A doctor’s careful evaluation is needed to make the distinction.

Why Support Matters
A diagnosis of any form of Parkinson’s can feel overwhelming. But with the right support and resources, individuals can maintain independence, quality of life, and emotional well-being.
For resources, referrals, and support in navigating Parkinson’s and related conditions, contact the Parkinson’s Association of Southwest Florida at www.paswfl.org or call 239-417-3465.

For over 25 years, PASWFL has provided free, high-quality services and programs to individuals and families touched by Parkinson’s disease in Southwest Florida. Their goal is simple: help people live well with PD, regardless of where they are in their journey.

Each week, PASWFL offers more than 25 free programs and support groups, including:

• Wellness and fitness classes
• Speech exercise classes
• Educational seminars
• Support for care partners
• Support groups

There are no fees to become a member, and PASWFL welcomes anyone touched by PD.

Take the First Step Toward Living Well
If you suspect early Parkinson’s or have been recently diagnosed, you don’t have to face it alone.
👉 Click here to sign up for the PASWFL newsletter
👉 Click here to become a member (it's free!)
To learn more, visit www.paswfl.org and discover the power of support, education, and community.