The chances of lung cavity cancer are impossible to determine. Lung cavities are formed when gas is inhaled after necrosis of diseased tissue in the lungs occurs. Some lung diseases have the potential to form cavities in the course of their development, and the cavities formed by different diseases are different in shape. Common diseases that can form lung cavities include bronchopulmonary cancer, tuberculosis, fibrous space, lung abscess, pulmonary mycosis and so on. Lung cancer cavities show different thickness of the wall, are uneven, basically no satellite foci appear around the cavity, the outline is not visible, there are short burrs or cuts appear. Other causes of pulmonary cavities have their own characteristics and can be easily differentiated. It is recommended to go to the hospital for examination to determine the cause of pulmonary cavitation and then treat the symptoms.