What Causes Mesothelioma Other Than Asbestos? Asbestos is a poisonous mineral that breaks down into microscopic fibres. These fibers are released into the air when disturbed, and people can inhale them. Once inhaled these fibres may cause lung cancer and Mesothelioma. Asbestos is the sole cause of mesothelioma lawyers. Consuming asbestos inhalation or consum...