What are the common symptoms of lung cancer? 1. Cough Early symptoms of lung cancer may also include cough. As lung cancer grows on bronchopulmonary tissue, it usually produces irritation of respiratory tract and irritating cough. 2.Low fever Patients will have the symptom of low fever. After the tumor blocks the bronchial tubes, there are often obstructive lung lobes, the degree of which varies from low fever in mild cases to high fever in severe cases. Chest discomfort Chest distension is also one of the main symptoms of lung cancer. In the early stage of lung cancer, chest pain is mild, mainly manifested as boring pain, hidden pain, the location is not certain, and the relationship with breathing is also uncertain. If the pain is persistent, it indicates that the cancer may involve the pleura. Sputum and blood A more serious manifestation of lung cancer is sputum and blood. When tumor inflammation causes necrosis and capillary breakage, there will be a small amount of bleeding, which is often mixed with sputum and appears intermittently or intermittently. Many lung cancer patients are diagnosed with sputum and blood. X-ray examination is still an important basic method to detect and diagnose lung cancer and provide reference for treatment. There are 5-10% of lung cancer patients who have no symptoms but can detect lung lesions by X-ray examination alone. 2.CT examination The advantage is that it can detect lung lesions smaller than 1cm and located in overlapping anatomical areas that are difficult to be detected by conventional chest X-ray, and it is easy to judge the relationship between lung cancer and surrounding tissues and organs. 3.Magnetic resonance examination The most important feature is that it is easier to identify the relationship between substantial masses and blood vessels than CT, and it can show the compression, displacement and obstruction of tracheobronchial tubes and blood vessels, but the examination of small nodules in the lung is not as good as CT. 4, sputum cytology The biggest advantage is that positive cytology results can be obtained before the lesion is detected by imaging. 5.Fiber bronchoscopy is the most important tool in lung cancer diagnosis. Fiberoptic bronchoscopy can directly observe the lesions in the trachea and bronchi, and can collect lesion tissues under direct vision for the diagnosis of pathological staging. Common treatment methods of lung cancer: 1. Surgery Surgery is feasible under the following conditions: (1) no distant metastasis, including parenchymal organs such as liver, brain, adrenal glands, bones, extra-thoracic lymph nodes, etc.; (2) cancerous tissues have not spread to adjacent organs or tissues in the chest, such as aorta, superior vena cava, esophagus and cancerous pleural fluid, etc.; (3) no severe cardiopulmonary depression or recent angina attack (4) No serious liver or kidney disease and severe diabetes mellitus. Chemotherapy for small cell lung cancer and non-small cell lung cancer. According to the biological characteristics of small cell lung cancer, chemotherapy should be preferred. There are many effective drugs for non-small cell lung cancer, because chemotherapy for lung cancer is divided into first-line chemotherapy and second-line chemotherapy, which means that even if first-line chemotherapy fails, patients can switch to second-line chemotherapy regimen. Radiotherapy is one of the common methods for lung cancer treatment, among which the best sensitivity to lung cancer radiotherapy is small cell lung cancer, followed by squamous lung cancer, and the worst lung adenocarcinoma. Biological therapy is the fourth type of cancer treatment developed after surgery, radiotherapy and chemotherapy, which utilizes and stimulates the body’s immune response to fight, inhibit and kill cancer cells.