What are the symptoms of dementia?

Every person is unique and dementia affects people differently – no two people will have symptoms that develop in exactly the same way

Dementia is caused by physical changes in the brain. These changes can affect different parts of the brain which can lead to different symptoms. Around 95% of people who are diagnosed with dementia have one of the four main types: Alzheimer’s disease, Vascular dementia, Lewy Bodies or front temporal dementia. (Source: – Alzhimers.org.uk)

Some of the most common symptoms of dementia are:

Memory Loss

In the early stages of dementia, a person may have trouble remembering the date and day of the week, forget people’s names or where they have put something. They may also have trouble remembering more recent events.

Mood Changes

A person with dementia may start to lose interest in hobbies and find they are getting more irritable or short-tempered.


Some people with dementia may find that it takes longer to process information and struggle to follow conversations often repeating themselves. They may also find it more difficult to apply logic to make decisions and arrange things in the right order


Getting confused and forgetting where they are going and how they got there, even in familiar places is a common symptom of dementia


A person with dementia may find it difficult to judge distances and/or misinterpret patterns or reflections

Misplacing things

Anyone can temporarily misplace his or her wallet or keys. A person with dementia may put things in unusual places

Withdrawal from work or social activities

A person with dementia may become very passive, sitting in front of the television for hours, sleeping more than usual, or appear to lose interest in hobbies.

If you or someone you know is diagnosed with dementia, there are lots of things you can do that will help you/them to live as well as possible, read some of our challenge pages for more information.

A good source of further information