How do you get Mesothelioma?

The single largest cause of Mesothelioma is working with asbestos; it is a major risk factor for Mesothelioma. A history of asbestos exposure at work is reported in about 70 percent to 80 percent of all cases. However, there have been cases where Mesothelioma has been reported in some individuals without any known exposure to asbestos. Most people with malignant Mesothelioma have worked on jobs where they breathed asbestos. Others have been exposed to asbestos in a household environment, often without their knowledge.