Improving Brain Tumour Care surveys share your experiences and help create change

How is a brain tumour diagnosed?

If your doctor (GP or A&E doctor) suspects you have a brain tumour, they will refer you to a specialist, such as a neurologist. These are specialists in brain and nerve disorders. If they suspect a child has a brain tumour, they will refer them to a paediatrician. Click on the links below to find out more about how a brain tumour is diagnosed by these and other medical professionals.

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If you or someone you love has been diagnosed with a brain tumour and you don’t know which way to turn, start with our Information Pack.

Neurological examination

What to expect when referred to a specialist for a neurological examination.

Eye tests

Learn what optometrists look for and how to prepare for your eye test.

Diagnostic Scans

Get details about MRI and CT scans, which can provide a detailed 3-D image of the brain.

What is a biopsy?

Learn how taking a small sample of the tumour can aid diagnosis of tumour type.


Biomarkers may help predict tumour growth or how well you may respond to some treatments.


Brain tumours are graded from 1 to 4 depending on how they are likely to behave. Find out more.