Dementia is an umbrella term, not a single disease. Knowing the type helps guide treatment and care planning.
What are the most common types of dementia?
The four most common types of dementia are Alzheimer's disease, vascular dementia, Lewy body dementia, and frontotemporal dementia. Alzheimer's is by far the most common, making up 60 to 80 percent of cases according to the Alzheimer's Association, and typically begins with memory loss. Vascular dementia results from reduced blood flow to the brain, often after strokes. Lewy body dementia involves hallucinations, movement problems, and fluctuating alertness. Frontotemporal dementia tends to strike younger and affects personality, behavior, or language first. Identifying the type guides treatment and what families can expect. For help navigating a new diagnosis, call 1-800-MEDIGAP.
What is mixed dementia and why does it matter?
Mixed dementia means a person has changes from more than one type of dementia at the same time, most often Alzheimer's combined with vascular dementia. The National Institute on Aging notes mixed dementia is more common than once thought, especially in people over 80. It matters because symptoms can be more varied and progression less predictable. Treatment may need to address multiple causes at once. An accurate diagnosis from a specialist helps tailor care. Understanding the type and combination guides safer medication choices and realistic planning. To find specialists and understand coverage, call 1-800-MEDIGAP at 1-800-633-4427.