The chances of a lung nodule being a malignant tumor are there, but most lung nodules actually prove to be benign conditions. Lung nodules is a collective term for new lung organisms that occur in the lungs with a maximum diameter of less than 3 centimeters, which may be inflammatory nodules, tuberculosis balls, calcified foci, pneumoconiosis particles, foreign bodies, and primary or metastatic malignant tumor tissue. Most patients with lung nodules do not have obvious symptoms, most of them are found by routine chest CT examination, and those who do not have special discomfort can be observed first, with regular rechecks, and if there has been no obvious enlargement or discomfort, they can be left untreated. Lung nodules are malignant tumors in a very small number of patients. If you are too anxious or have repeated coughing, coughing up sputum, sputum with blood, etc., it is recommended that you undergo surgery as soon as possible to remove the tumor, and if the pathological results confirm that the tumor is malignant, you need to undergo further chemotherapy and radiotherapy. Lung nodules are malignant, but early detection, early diagnosis, early treatment, the prognosis is still very good.