Mesothelioma and Asbestos Asbestos is a very hazardous substance that can lead to several medical diseases. One of these conditions, mesothelioma, is a rare cancer. This rare cancer affects the linings of certain organs. The most prevalent mesothelioma types are pleural and peritoneal. Mesothelioma is caused by breathing asbestos fibres. https://vimeo.com/704996219