Lung cancer is one of the malignant tumors with the fastest growing incidence and mortality rates and the greatest threat to the health and lives of the population. In the past 50 years, many countries have reported a significant increase in the incidence and mortality of lung cancer, with men accounting for the first place in incidence and mortality of all malignant tumors and women accounting for the second place in incidence and mortality. The etiology of lung cancer is not completely clear yet, but a lot of information shows that long-term heavy smoking has a very close relationship with the occurrence of lung cancer, in addition to occupational and environmental exposure, ionizing radiation, previous chronic lung infections, genetics, and atmospheric pollution, which may trigger lung cancer. Symptoms of lung cancer The clinical manifestations of lung cancer are complex. The presence or absence, severity and early or late appearance of symptoms and signs depend on the location of tumor, pathological type, the presence or absence of metastasis and complications, as well as the difference of patients’ response degree and tolerance. Early symptoms of lung cancer are often mild, or even without any discomfort, and mainly include the following four major manifestations: 1. Chest distension and pain About 25% of the patients have chest pain as the first symptom, which is not obvious. But the distending pain may occur continuously. 2.Cough is one of the early symptoms of lung cancer, and cough as the first symptom accounts for 35% to 75% of the cases. However, it is easily mistaken for other diseases and not taken seriously because it is all about irritating cough due to irritation of the respiratory tract. The typical manifestation is a paroxysmal irritating dry cough, which is often not easily controlled by general cough suppressants. Blood in sputum or hemoptysis is also a common symptom of lung cancer, and this is the first symptom of about 30%. The tumor causes capillary rupture, resulting in coughing up blood, which is usually mixed with sputum and occurs intermittently or intermittently. 4.Low fever The first symptom accounts for 20% to 30%. The cancer cells invade the bronchial tubes and cause obstruction of the bronchial tubes, which sometimes leads to hypothermia, or in severe cases, high fever. There is no fixed treatment method for lung cancer. The choice of treatment method depends on the size of the tumor, and the main treatment methods are: (1) Surgery is mainly used for the treatment of stage 1 lung cancer patients. The 1-year survival rate for stage 1 surgery alone is 80% and the 5-year survival rate is 50%. Early stage non-small cell lung cancer (NSCLC) is mainly treated by surgery. (2) Radiation therapy For early stage NSCLC and those who refuse surgery, radical radiotherapy can be performed. The use of precision radiotherapy (stereotactic radiotherapy and three-dimensional conformal radiotherapy) can achieve similar results as surgical treatment. Fractionated radiotherapy plus concurrent chemotherapy for stage III NSCLC may improve the outcome, but the effect of preoperative radiotherapy is uncertain, while postoperative 3D conformal radiotherapy (3D-CRT) is superior to conventional postoperative radiotherapy. In limited small cell lung cancer (SCLC), an integrated treatment model with concurrent chemoradiotherapy is better than a sequential model. (3) Chemotherapy The efficacy of chemotherapy for small cell lung cancer is more certain in both early and advanced stages, and even about 1% of early stage small cell lung cancer is cured by chemotherapy. Chemotherapy is also the main treatment for non-small cell lung cancer, and the tumor remission rate of chemotherapy for non-small cell lung cancer is 40% to 50%. However, chemotherapy generally cannot cure non-small cell lung cancer, but can only prolong patients’ survival and improve their quality of life. In addition, there is radiofrequency ablation: for patients with early stage lung cancer that cannot be removed surgically, treatment with radiofrequency ablation (RFA) can achieve better medium and long-term regression. RFA will become an effective means to treat lung cancer. Traditional Chinese medicine (TCM): TCM treatment for lung cancer is evidence-based and can be used both as a comprehensive treatment and as an adjuvant treatment.