The survival time of patients with malignant lung nodules, i.e. lung cancer, is mainly related to the early or late detection of the disease and whether treatment is carried out in a timely manner. Malignant lung nodules are commonly found in bronchopulmonary carcinoma and alveolar cell carcinoma, etc. Patients may develop coughing sputum, blood in sputum, and persistent and irritating cough in early stage. As the disease progresses, malignant disease such as chest pain, chest tightness, wasting, weakness, depression and loss of appetite may appear. Most patients with malignant pulmonary nodules can be cured and have little impact on their life expectancy if they are detected early and treated surgically after timely diagnosis. For patients who are already at an advanced stage at the time of discovery, their 5-year survival rate can reach 40%-80% after surgery combined with postoperative radiotherapy. In addition, it is recommended that patients with pulmonary nodules undergo annual physical examinations and chest radiographs can detect lung nodules and other lesions early, and then take timely and accurate treatment to reduce the impact on life expectancy.