Mesothelioma and Work Exposure Mesothelioma is more common in people who work with asbestos. Firefighters, construction workers and military veterans are at a higher risk. The lung's lining (pleural mesothelioma) or the abdomen, is the main mesothelioma's primary site. In rare cases, it may affect the testicles or the heart. https://vimeo.com/704933502