Causes of brain tumours
The exact reasons why you may develop a brain tumour aren’t fully understood at present. Most brain tumours are thought to develop from unusual and random changes in your brain cells, but what causes these isn’t known.
There are a number of factors that slightly increase your risk of developing a brain tumour, including:
your age – the older you are, the more likely you are to get a brain tumour
having an inherited disease – for example, neurofibromatosis (a condition that affects the development and growth of nerve cells)
being exposed to high doses of radiation – for example, if you have radiotherapy to your head as treatment for another cancer
having a weakened immune system – for instance, if you have HIV/AIDS, or if you take medicines that suppress your immune system
Currently, there is no evidence to show that mobile phones can cause brain tumours.