Lung tumors are mainly benign tumors and malignant tumors. Generally, patients with benign tumors may have no symptoms in the early stage, while some malignant tumors may have symptoms such as cough and blood in sputum. Usually, patients with benign lung tumors have no clinical symptoms due to the small size of the tumor in early stage, and most of them can be found during physical examination or imaging examination. Some patients with malignant lung tumors may have irritating dry cough without sputum or little sputum in the early stage. If the tumor has invaded the adjacent tissues in the early stage, it may cause irregular hidden pain or dull pain in the chest, which will be aggravated when coughing. At the same time, some patients with malignant tumors will also appear in the early sputum with blood or hemoptysis, hoarse voice, dyspnea and other symptoms, there are a small number of patients without any symptoms in the early stage. Benign tumors and early malignant tumors of the lungs can be cured through surgical treatment, so patients need to consult a doctor for examination in time after the appearance of abnormal symptoms. It is recommended that patients pay more attention to their own symptoms, and if it is clear that they have lung tumors, they should take treatment measures as soon as possible to avoid aggravation of the condition.