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What are the Causes and symptoms of Brain Cancer
The causes of different brain cancers remain largely unknown. Unlike many other cancers, brain tumours seem to occur at random in the population and are not usually associated with known risk factors. However, exposure to ionizing radiation, such as during head X rays, does increase a person's risk of developing certain brain cancers, as does a suppressed immune system or family history of cancer. Symptoms of brain cancer vary widely depending on the location of the tumour. As the tumour grows, it might put pressure on nearby regions of the brain and thereby affect the functions controlled by those regions. Difficulty or changes in speech, hearing, vision, or motor functions can all indicate the presence of a brain tumour. Many brain tumours are initially discovered following chronic headaches, and in some cases seizures are associated with cancers of the brain. Symptoms may also include vomiting, nausea, or numbness in any part of the body.
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