Play Video

When you go to the doctor with memory and thinking problems:

  • They will ask about your symptoms and how they are affecting you. A relative or close friend may also be asked what changes they have noticed in you. You can use this print-out to write down your symptoms before your appointment.
  • You’ll be asked about your medical history and the doctor may give you a physical check-up, checking your blood pressure and balance.
  • You will have some blood tests, to rule out some possible causes like vitamin deficiencies and thyroid disorders. You may be asked for a urine sample.
  • You will be asked to do a short memory and thinking test.
  • If your doctor suspects you may have dementia, they should refer you to a memory clinic or specialist for further tests.

A memory clinic or specialist can:

  • Perform more in-depth memory and thinking tests to determine the severity of symptoms. These tests assess memory, language, visual and spatial awareness, levels of attention and ability to reason and solve problems.
  • Send someone for a brain scan. Different types of brain scan are used to look for changes that occur in the brain when someone has a disease that causes dementia. If the doctors can see changes in certain areas of the brain this can help them to diagnose the type of dementia someone has.
  • On rare occasions arrange for a lumbar puncture. This can help doctors identify which disease someone is likely to have based on whether certain substances are in the spinal fluid.

When someone receives a dementia diagnosis it can come as a shock. Other people feel relieved to have an explanation for their symptoms and the change in their health. People can choose not to know their diagnosis if they prefer not to and can choose someone else who will be told.

Usually, a memory clinic concentrates on making the diagnosis and advising on first steps in support and treatment. After that, a person goes back into the care of their GP practice, where doctors and nurses will advise on longer term help, support, and treatments.

It’s important that someone diagnosed with dementia sees their doctor regularly for a general check-up, this can be every 6 to 12 months.

Below you can hear from Valli, whose husband Des lives with dementia. She shares some invaluable advice about what to do if you’re worried about yourself or a loved one.

If you have questions about dementia or getting a diagnosis you can contact the Dementia Research Infoline on 0300 111 5111 or email

diagnosis front

Getting a dementia diagnosis

Find out more about symptoms of dementia and how to get a diagnosis through your GP.

Order health information

Alzheimer’s Research UK has a wide range of information about dementia. Order booklets or download them from our online form.

RS1317_Alex_Wallace_Photography_ARUK_Rebrand_Des and Valli_April 2023 (64) (1)

This information was updated in October 2023 and is due to be reviewed in August 2025. It was written by Alzheimer’s Research UK’s Information Services team with input from lay and expert reviewers. Please get in touch if you’d like a version with references or in a different format.

Was this information helpful?

Let us know what you think by filling out this short survey.