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DementiaReference

Vascular Dementia

Understanding Vascular Dementia — what it is, the signs people notice, and where to find support. Educational, not a diagnosis.

By the Emotionally Me team · Last updated: 31 July 2026

What is vascular dementia?

Vascular dementia is a condition that affects how a person thinks, remembers and makes sense of the world. It happens when the brain does not get enough of the healthy blood flow it needs to work well. Our brains rely on a steady supply of oxygen carried in the blood, and when that supply is reduced or interrupted, brain cells can become damaged over time.

It is the second most common type of dementia, after Alzheimer's disease. Sometimes it develops gradually; sometimes it appears more suddenly, for example after a stroke. It can also happen alongside Alzheimer's, which is often called "mixed dementia."

If you are reading this because you or someone you love has been affected, take a breath. Understanding what is happening is a caring, sensible first step, and there is real support out there. This page is here to help you understand, not to diagnose.

What are the common signs and experiences of vascular dementia?

Vascular dementia can look different from one person to the next, because it depends on which parts of the brain are affected. Many people notice changes in thinking speed and concentration first, rather than memory. Tasks that used to feel automatic, like planning a meal or following a conversation, can start to take more effort.

Common experiences include difficulty concentrating, feeling more forgetful, struggling to find words, or getting confused about time and place. Some people feel low, tearful or more anxious, or notice their mood shifting quickly. Physical changes, such as unsteadiness or slower movement, can appear too.

A hallmark of vascular dementia is that changes sometimes happen in "steps," staying stable for a while and then shifting more noticeably. If this feels familiar, know that these experiences are part of a recognised condition, not a personal failing.

How do I know if I or someone I love might have vascular dementia?

You cannot diagnose vascular dementia at home, and it is important not to try. Many things can affect memory and thinking, including tiredness, stress, low mood, infections, some medicines and other treatable conditions. That is genuinely reassuring, because it means changes are always worth checking rather than fearing the worst.

It may help to gently notice patterns over time. Are everyday tasks becoming harder? Is concentration slipping, or are conversations more difficult to follow? Have there been noticeable "step" changes, perhaps after a health scare?

If you are worried about yourself or someone you care about, the kindest thing you can do is talk to a GP. Bringing a few written examples can make that conversation easier. You are not overreacting by asking, and you do not need to be certain before you seek advice.

What causes vascular dementia?

Vascular dementia is caused by problems with the blood supply to the brain. This might follow a stroke, a series of small "mini-strokes" that a person may not even notice at the time, or gradual narrowing and damage to the small blood vessels deep in the brain.

Because of this, the things that affect our heart and circulation also affect our risk. High blood pressure, diabetes, high cholesterol, smoking and being less physically active can all play a part. This is not about blame. Many factors, including age and family history, are outside anyone's control, and having some of these does not mean a person will develop dementia.

The hopeful side is that looking after your heart and blood vessels can support your brain health too. Small, kind changes over time genuinely matter.

Is vascular dementia the same as Alzheimer's disease?

This is one of the most common questions, and it is a good one. Vascular dementia and Alzheimer's disease are both types of dementia, but they are not the same thing. Dementia is an umbrella term for a group of conditions that affect memory and thinking, and these two are the most common causes.

The main difference is what is happening inside the brain. Alzheimer's is linked to a build-up of certain proteins, while vascular dementia is linked to blood flow. Alzheimer's often begins with memory difficulties, whereas vascular dementia may start with slower thinking, concentration problems or mood changes.

Sometimes both occur together, which is called mixed dementia. Only a proper assessment can tell them apart, so please do not worry about working out the difference yourself.

How is vascular dementia diagnosed or recognised?

Diagnosis usually starts with a visit to a GP, who will listen to your concerns and ask about the changes you have noticed. They may check for other causes, such as thyroid problems, infections or vitamin deficiencies, with simple blood tests, and review any medicines.

They might do some memory and thinking exercises, and check things like blood pressure. If needed, they can refer to a specialist service, sometimes called a memory clinic, where a fuller assessment can take place. A brain scan may be arranged to look at the blood vessels and rule other things out.

Waiting for answers can feel unsettling, so be gentle with yourself through it. A clear diagnosis, though hard to hear, can actually open doors to support, planning and treatments that help. You do not have to face any of it alone.

What support or treatment options are there?

There is currently no cure that reverses vascular dementia, but a great deal can be done to support wellbeing, slow changes and help someone live as fully as possible. Much of the focus is on protecting the brain's blood supply by managing things like blood pressure, diabetes and cholesterol, often with a GP's help.

Practical support makes a real difference too. This can include occupational therapy, memory aids, routines, help at home, and support for mood, which is very common alongside dementia. Staying active, connected and mentally engaged is encouraged where possible.

Support is for carers as well as the person themselves. Dementia UK's Admiral Nurses and the Alzheimer's Society offer guidance, understanding and someone to talk to. Asking for help early is a strength, not a burden.

How can I support myself or someone I love with vascular dementia?

Whether you are living with vascular dementia or caring for someone who is, small acts of kindness go a long way. Keep routines gentle and familiar, break tasks into smaller steps, and allow more time without pressure. Calm surroundings, good lighting and clear reminders can ease daily life.

Try to focus on connection rather than correction. Meeting someone in their reality, rather than constantly reminding them of facts, often brings more comfort to you both. Celebrate what is still possible, and hold on to the relationship beneath the condition.

If you are the carer, please protect your own wellbeing too. Rest, ask for help, and share the load where you can. You matter in this story as much as the person you are supporting, and looking after yourself is part of looking after them.

Where can I get help right now?

If you or someone you love is in immediate danger or having a medical emergency, such as signs of a stroke (sudden face drooping, arm weakness or slurred speech), call 999 straight away. For urgent but non-emergency health worries, you can call NHS 111 at any time.

To take the next step, speak to your GP about any concerns, and explore the NHS guide to vascular dementia at nhs.uk/conditions/vascular-dementia. For understanding, advice and a listening ear, the Alzheimer's Society (alzheimers.org.uk) offers a support line and information, and Dementia UK (dementiauk.org) provides specialist Admiral Nurse support for families.

If everything feels overwhelming and you simply need someone to talk to, the Samaritans are there free, any time, on 116 123. You deserve support, and reaching out today is a brave and loving thing to do.

Sources & further reading

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