Careblazer, one of the most common questions I get is: What are the different types of dementia? If your loved one has been diagnosed with dementia but you’re unsure of the exact type, you’re not alone. Many families don’t receive a specific diagnosis right away, and sometimes, it becomes clearer as symptoms progress.
Understanding the different types of dementia can help you recognize key symptoms, manage expectations, and provide better care. In this post, we’ll go over the five most common types of dementia, what makes them unique, and what you need to know to navigate your caregiving journey.
1. Alzheimer’s Disease: The Most Common Type of Dementia
When most people hear the word “dementia,” they automatically think of Alzheimer’s disease—and for good reason! Alzheimer’s is the most common form of dementia, making up anywhere from 60% to 80% of all dementia cases.
Key Characteristics of Alzheimer’s Disease:
Memory loss is often the first symptom.
As it progresses, it affects language skills, problem-solving, and reasoning.
The risk increases with age, especially after 65.
Women are more likely to develop Alzheimer’s than men.
What to Expect:
Alzheimer’s tends to start subtly—misplaced items, forgetting names, or struggling to find words. Over time, it becomes more severe, leading to confusion, difficulty completing daily tasks, and personality changes. While there’s no cure, early intervention and lifestyle modifications can help slow progression.
2. Vascular Dementia: Linked to Blood Flow Issues
The second most common type of dementia is vascular dementia, accounting for about 14.5% of cases. Unlike Alzheimer’s, which primarily affects memory, vascular dementia is caused by reduced blood flow to the brain, often due to strokes or other cardiovascular issues.
Key Characteristics of Vascular Dementia:
Thinking and problem-solving issues appear before memory loss.
Symptoms may appear suddenly, after a stroke or mini-strokes.
More common in men due to higher risks of heart disease and high blood pressure.
High cholesterol, smoking, and hypertension increase risk.
What to Expect:
The symptoms of vascular dementia vary depending on which part of the brain is affected. Some people may struggle with decision-making, while others may experience mood swings or trouble concentrating. Since this type of dementia is closely tied to cardiovascular health, managing heart health is crucial for prevention and slowing progression.
3. Lewy Body Dementia: A Lesser-Known but Complex Dementia
Lewy body dementia (LBD) is thought to account for about 5.4% of dementia cases, but some studies suggest it may be more common than we realize. This dementia is caused by abnormal protein deposits (Lewy bodies) in the brain and is often mistaken for Alzheimer’s or Parkinson’s disease.
Key Characteristics of Lewy Body Dementia:
Visual hallucinations are common.
Sleep disturbances, like acting out dreams, often appear early.
Fluctuations in alertness and cognitive abilities.
Symptoms may wax and wane, meaning some days are much better than others.
What to Expect:
LBD can be frustrating because a loved one may seem completely fine one day and extremely confused the next. Hallucinations and movement issues are common, making this type of dementia especially tricky to diagnose. Medications for other dementias can worsen symptoms, so it’s important to work with a doctor who understands LBD.
4. Frontotemporal Dementia: More Common in Younger Adults
Unlike Alzheimer’s, which affects older adults, frontotemporal dementia (FTD) is more common in people under 65. While it accounts for only 1% of all dementia cases, that still means 1 in 100 cases fall into this category.
Key Characteristics of Frontotemporal Dementia:
Personality and behavior changes appear first, not memory loss.
May cause poor judgment, impulsivity, or lack of empathy.
Speech and language difficulties can occur before cognitive decline.
Memory loss happens later in the disease.
What to Expect:
FTD can be hard to diagnose because it doesn’t look like “typical” dementia. People may become socially inappropriate, struggle with planning, or have trouble speaking. This is a dementia that deeply affects relationships, making education and support critical for caregivers.
5. Mixed Dementia: When More Than One Type Is Present
Did you know that some people have more than one type of dementia? It’s called mixed dementia, or dementia due to multiple etiologies. It’s most common in older adults, and symptoms vary depending on which parts of the brain are affected.
The Most Common Mixed Dementia Combinations:
Alzheimer’s disease + Vascular dementia (6.3% of cases)
Alzheimer’s disease + Lewy Body dementia (2% of cases)
What to Expect:
Because mixed dementia involves multiple forms of brain changes, symptoms can be more complex and unpredictable. Memory loss, confusion, mood swings, and movement issues may all be present. Since vascular health plays a role, lifestyle changes like a heart-healthy diet and exercise can help slow its progression.
Every Dementia Journey is Unique
Even if two people have the exact same type of dementia, their symptoms and progression may look completely different. That’s because other factors—like lifestyle, caregiving support, sleep, and diet—can influence how the disease develops.
Many caregivers feel more confident when they know their loved one’s specific dementia diagnosis, but not all families get a clear answer. Over time, new symptoms and changes can provide more insight into what type of dementia is present.
Want to Learn More?
I’ve covered each of these types of dementia in-depth in dedicated videos, which you can find linked below.
- 🎥 What’s the Difference Between Alzheimers Disease and Dementia?
- 🎥 Vascular Dementia
- 🎥 Lewy Body Dementia
- 🎥 Frontotemporal Dementia
- 🎥 5 Surprising Facts About Dementia You May Not Know
If you’re looking for a complete breakdown of dementia, symptoms, treatments, and caregiver support, I also offer a full Understanding Dementia program inside my Care Collective Program.
Want to watch the in-depth video that inspired this post?
Click the video below to watch. ↓