A hole in the lung does not necessarily mean cancer. Cavities in the lungs can also be caused by other diseases, such as tuberculosis caused by Mycobacterium tuberculosis infection, which has fibrous cavity-like changes due to damage to the lung tissue caused by Mycobacterium tuberculosis. It can also be caused by other specific pathogens such as Staphylococcus aureus and bacteria such as Klebsiella. Its possible to leave some scars in the lungs, which are fibrotic, calcified cavities, because the inflammation has not completely subsided, although it is cured. Clinically, CT or MRI of both lungs can be taken. Generally, cancerous cavities can appear as irregular, burred, or even cancerous invasive lesions. In addition, biopsies of the lesions can be taken for pathological examination to clarify the existence of cancer cavities, which should be treated with timely surgery and supplemented with radiotherapy.