A brain tumour is a growth in your brain. It can be non-cancerous (benign) or cancerous (malignant).
Symptoms of a brain tumour include a severe headache that does not go away, fits (seizures), memory problems and changes in your personality.
Treatments for brain tumours include steroid medicines, surgery, radiotherapy and chemotherapy.
The cause of most brain tumours is unknown. Things that increase your chances of getting a tumour include getting older or being exposed to radiation.