Dementia
Dementia is a set of symptoms that can include memory loss and difficulties with thinking and language. It mainly affects older people but is not a normal part of ageing, and support is available.
- Updated August 2026
- Clinical review pending
- 1 source
At a glance
- Dementia affects memory, thinking and communication.
- It is not a normal part of getting older.
- A diagnosis opens the door to treatment, support and planning.
On this page (5 sections)
Overview
Dementia is a group of symptoms caused by different conditions that affect the brain, the most common being Alzheimer’s disease. It mainly affects older people, but it is not a normal part of ageing [1].
Common early symptoms
Early signs can include memory problems, difficulty concentrating or following conversations, problems with language or judgement, and changes in mood. Symptoms are usually mild at first and get worse over time [1].
Why a diagnosis helps
Getting a diagnosis means a person can get the right treatment and support, and plan for the future. A GP can carry out an initial assessment and refer to a specialist [1].
Treatment and support
There is no cure for most types of dementia, but treatments, therapies and support can help people live well for as long as possible. Charities such as the Alzheimer’s Society and Dementia UK also offer support [1].
When to see a doctor
See a GP if you are worried about memory problems or other symptoms of dementia — in yourself or someone else — so the cause can be checked [1].
Sources
- NHS. Dementia (opens in new tab) Accessed 12 August 2026.
About this page
- Written by
- Consumer Health editorial team
- Medical review
- Pending — this page has not yet been reviewed by a named clinician. Read our medical review policy.
- Last updated
- August 2026
- Next review due
- August 2027
Important: This information is for general guidance only and does not replace professional medical advice. It is not intended to diagnose or treat any condition. Always speak to a qualified healthcare professional — such as your GP or pharmacist — for advice about your individual circumstances, and do not start, stop or change any prescribed treatment based only on this page. If you think you are having a medical emergency, call 999. Consumer Health is an independent health-information resource and is not the NHS or a government body.
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