When you're told that you have a brain tumor, it's natural to wonder what may have caused your disease. But no one knows the exact causes of brain tumors. Doctors seldom know why one person develops a brain tumor and another doesn't. Researchers are studying whether people with certain risk factors are more likely than others to develop a brain tumor. A risk factor is something that may increase the chance of getting a disease. Studies have found the following risk factors for brain tumors:
- Ionizing radiation: Ionizing radiation from high dose x-rays (such as radiation therapy from a large machine aimed at the head) and other sources can cause cell damage that leads to a tumor. People exposed to ionizing radiation may have an increased risk of a brain tumor, such as meningioma or glioma.
- Family history: It is rare for brain tumors to run in a family. Only a very small number of families have several members with brain tumors.
Researchers are studying whether using cell phones, having had a head injury, or having been exposed to certain chemicals at work or to magnetic fields are important risk factors. Studies have not shown consistent links between these possible risk factors and brain tumors, but additional research is needed.
Brain Cancer Facts
- About the brain
- Different types of tumors
- Risk factors
- Common symptoms
- Different types of tests involved in diagnosis
- Various treatment types
- 10 Steps: When you are diagnosed with brain cancer
Nobody expects a brain tumor will enter their life. These are the stories about what happens next. They are stories of hope, sadness, love, and loss. View the brain tumor stories and share your own story.
Free Brain Tumor Guide - Click to download. 96 pages of valuable resources, facts and tips about the medical, practical and emotional effects of brain tumors to help you (or an advocate) gain control and learn how to cope with the diagnosis.