Lung cancer is the most common primary malignant tumor of the lung. The tumor cells originate from the bronchial mucosa or glands, and are often accompanied by regional lymph node and blood metastasis. In the early stages, there are respiratory symptoms such as irritating dry cough and blood in sputum. The rate of disease progression is related to the biological specificity of the cells. Lung cancer is one of the most common malignant tumors in the world today. It is a disease that seriously threatens people's health and life, and is a typical disease related to environmental factors and lifestyle. Symptoms of lung cancer are closely related to the occurrence, location, size, type, development stage, and the presence or absence of complications or metastasis. 5% to 15% of patients have no symptoms when lung cancer is discovered. Cough is the most common early symptom, which manifests as an irritating dry cough or a small amount of mucus sputum. Sometimes a high-pitched metallic sound can be heard when coughing. At this time, the tumor has caused bronchial stenosis. When secondary infection occurs, the amount of sputum will increase and become mucopurulent. Hemoptysis is more common in central lung cancer. In the early stage, it is mostly blood in the sputum. It is mainly caused by the invasion of large blood vessels, which can cause a large amount of hemoptysis. In some patients, hemoptysis is the main first symptom. Chest tightness and shortness of breath are caused by tumors leading to bronchial stenosis, hilar lymph node metastasis, enlarged lymph nodes compressing the main bronchi or carina, metastasizing to the pleura and pericardium, causing a large amount of pleural effusion and pericardial effusion, superior vena cava obstruction, diaphragmatic paralysis and extensive lung involvement. Stridor is also caused by partial bronchial obstruction caused by lung cancer, and sometimes localized wheezing sounds may occur. For lung cancer, weight loss is also a common symptom. Appearing thin is one of the common symptoms of tumors. When the tumor develops to the late stage, due to the long-term consumption of tumor toxins, infection and pain, the patient shows some symptoms of anorexia and is more obviously thin. Fever is also a typical manifestation of lung cancer. Tumor necrosis causes fever, which is more often caused by secondary pneumonia. The effect of antibiotic treatment is relatively poor. To prevent lung cancer, first of all, we must not smoke. Smoking has been recognized as an important risk factor for lung cancer. Carmine contains various carcinogens, among which benzopyrene is the main carcinogen. According to surveys in our country, 80% to 90% of male lung cancer is related to smoking, and the lung cancer mortality rate of smokers is 10 to 13 times higher than that of non-smokers. Occupational carcinogens have been identified as a major cause of lung cancer. People who often work with petroleum, inorganic quinone compounds, and dichloromethyl ether are prone to lung cancer because these particles can enter our lungs and cause cancer in our lungs. Air pollution can also cause lung cancer. We cannot control the air. If the air pollution is serious, we should go out less and take preventive measures when we go out. Ionizing radiation can cause lung cancer because the lungs are an organ that is more sensitive to radiation. Diet and nutrition are also closely related to lung cancer. We should eat more foods containing vitamin A and carotene to stay away from lung cancer. We must prevent lung cancer. The lung is an important organ in our body. Patients with lung cancer must pay attention to their diet and have a balanced diet. They should develop a diet plan, eat less spicy and irritating foods, and eat more high-protein, high-calorie, high-vitamin, and easily digestible foods. This will help improve the condition. We must stay away from smoking, as smoking is the main cause of lung cancer. |
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