The formation of abnormal cells inside the brain often result in a brain tumor. Brain tumors are of two types: benign tumors and malignant/cancerous tumors. This means that all brain tumors are not cancerous but only the malignant type.
Malignant tumors are further divided by primary tumors which form inside the brain and secondary tumors which originate from elsewhere inside the body. The latter type is also termed as brain metastasis tumors.
A risk factor is anything which may increase the possibility of developing a tumor in one’s brain. While risk factors have a part to play in developing it, most of them do not really cause it. People with several risk factors may never develop a brain tumor while those with none may do.
Some of the common risk factors are:
Age: Though brain tumors are common in older adults and children, anybody may develop them at any age.
Gender: Males are more likely to develop brain cancer than females; though certain types of it, for instance meningioma, are common only in women.
Exposures: The risk of developing brain tumors increases when exposed to pesticides, solvents, rubber, vinyl chloride and oil products.
Family History: About 5% of brain tumors may occur due to hereditary factors, such as neurofibromatosis, tuberous sclerosis and Li-Fraumeni syndrome.
Seizures and head injury: Serious head trauma often result in the development of brain tumors.
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