Causes Causes Many studies are underway to identify possible causes of primary brain tumors. Little is known, but researchers have begun to make progress. The more that is known, the more likely something can be done to prevent them.
Epidemiology is the study of the occurrence of a disease and the factors that influence it.
Epidemiological studies gather information about who is affected. That data helps identify clusters of individuals who might be subject to common factors. Laboratory studies investigate changes occurring on a cellular level that will lead to better understanding of the biological steps involved in tumor formation. It is generally accepted that a brain tumor is due to an alteration in the patient's genetic structure. The alteration can be inherited, caused by environmental factors, or a combination of the two.