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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.

Neurological examination

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

What to expect

Eye tests

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

About eye tests

Diagnostic Scans

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

Understanding scans

What is a biopsy?

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

More information


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

Find out more


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

Grading brain tumours