Dementia Care, Homecare News

Understanding the different types of dementia

Understanding the different types of dementia can help you recognise symptoms, understand how they may affect someone and find the right support.

Understanding the different types of dementia

Dementia and Alzheimer’s are often used as though they mean the same thing, but they’re not quite the same. This World Alzheimer’s Month, we’re taking a closer look at the different types of dementia and what actually sets them apart.

Dementia is an umbrella term for a set of symptoms affecting memory, thinking and daily life, rather than a single disease. Alzheimer’s is the most common cause behind those symptoms, but it’s only one of several distinct conditions that fall under the dementia umbrella, each affecting the brain, and the person living with it, in a slightly different way.

Key takeaways

  • Dementia describes a group of symptoms. Alzheimer’s is the most common underlying cause
  • Vascular dementia is linked to blood flow and often progresses in noticeable steps
  • Lewy body dementia can cause hallucinations and fluctuating alertness alongside memory changes
  • Frontotemporal dementia tends to affect personality and language before memory, often at a younger age
  • Many people live with more than one type at once, known as mixed dementia
  • Dementia care is tailored to the individual, whatever the underlying type

Why the difference matters

Each type of dementia can progress differently and affect different abilities first, whether that’s memory, planning, mood or movement. Understanding which type someone has helps families know what to expect, and helps Care Professionals shape support around the individual rather than a generic approach.

Alzheimer’s disease

Alzheimer’s is caused by a build-up of proteins in the brain that gradually damage nerve cells, and it’s the most common cause of dementia in the UK. It typically develops slowly, often starting with short-term memory loss, before gradually affecting language, reasoning and everyday tasks.

Vascular dementia

Vascular dementia is caused by reduced blood flow to the brain, often following a stroke or a series of smaller, unnoticed strokes. Unlike the gradual decline seen in Alzheimer’s, symptoms can appear more suddenly and progress in noticeable steps. Difficulties with planning, concentration and slowed thinking are often more prominent than memory loss in the early stages.

Lewy body dementia

Lewy body dementia is linked to abnormal protein deposits in the brain, known as Lewy bodies, and shares some features with Parkinson’s disease. It often brings visual hallucinations, alertness that fluctuates from one hour to the next, and physical symptoms such as tremors or stiffness, alongside changes to memory and thinking.

Frontotemporal dementia

Frontotemporal dementia affects the front and side areas of the brain and tends to appear at a younger age than other types, often between 45 and 65. It typically affects personality, behaviour and language before memory, which can make it harder for families to recognise early on.

When someone has more than one type

It’s also worth knowing that many people live with more than one type of dementia at once, known as mixed dementia, most commonly a combination of Alzheimer’s and vascular dementia. This is part of why a proper diagnosis from a GP or memory clinic matters, rather than relying on symptoms alone.

Frequently asked questions about dementia

1. Is Alzheimer’s the same as dementia?

Not quite. Dementia is the umbrella term for the symptoms, and Alzheimer’s is the most common condition that causes them.

2. What is the difference between Alzheimer’s and vascular dementia?

Alzheimer’s typically develops slowly, often starting with memory loss, while vascular dementia is caused by reduced blood flow to the brain and can progress in more sudden, noticeable steps.

3. What are the main types of dementia?

The most common types are Alzheimer’s disease, vascular dementia, Lewy body dementia and frontotemporal dementia, each affecting the brain in a different way.

4. Does the type of dementia affect what care someone needs?

It can. Different types bring different challenges, so care is always best when it’s shaped around the individual rather than a general dementia label.

Here to help

Whatever type of dementia a loved one is living with, our Care Professionals receive regular dementia-specific training so support is always shaped around the individual. Find out more about our dementia care, or explore our free downloadable guide via You Are Not Alone. Get in touch with our friendly team to talk through care options for your loved one.