Boy diagnosed with tumour after drawing dot on his head

A brain tumour is a growth of cells that multiples in an abnormal, uncontrollable way.

They are more common in adults, but children are occasionally affected.

More than 9,000 people are diagnosed with brain tumours each year in the UK.

Tumours can be cancerous or not, with cancerous tumours generally growing faster and spreading.

Common symptoms include seizures, vomiting, drowsiness, personality changes, and severe, persistent headaches.

Their cause is unknown, however, previous cancer sufferers and those exposed to radiation are more at risk.

Treatment varies but can include steroids, surgery, radiotherapy and chemotherapy.

What are the warning signs?

· Persistent or recurring vomiting

· Persistent or recurring headaches

· Balance / co-ordination problems / walking problems

· Blurred or double vision

· Poor balance and co-ordination

· Abnormal eye movements

· Abnormal head position

· Fits or seizures

· Behavioural changes, especially tiredness

· Increasing head circumference in babies

Source: NHS Choices