Brain tumours can cause signs or symptoms either by pressing on the brain as they grow or, through blocking the flow of the fluid in the brain, by causing an increase in pressure within the skull.
It is important to know that other conditions can cause similar signs or symptoms.
Learn about the most common symptoms of brain tumours in adults
Be prepared - learn about the most common symptoms of brain tumours in children
Symptoms of a brain tumour can vary depending on the tumour's location.