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Lung cancer
How is lung cancer caused?
The specific causes of lung cancer are not completely clear, but there are some high-risk factors. Research has shown that lung cancer is influenced by a combination of genetic defects and internal and external environmental carcinogens. It is undeniable that long-term heavy smoking is the most important carcinogenic factor for lung cancer, with the amount and duration of smoking being positively correlated with the incidence of lung cancer. Secondly, environmental factors, such as working with asbestos or in mining areas, are also very relevant to the incidence of lung cancer. Thirdly, irregular eating habits, rest, alcohol consumption, indoor combustion, coal smoke, fumes from kitchen cooking, and carcinogenic substances released from indoor decorations and materials are also related. Fourthly, the body's internal immune status, metabolic abnormalities, genetic factors, and chronic lung infections also have a significant impact.
How to detect early symptoms of lung cancer?
So, the early symptoms of lung cancer often include a cough, hemoptysis, difficulty breathing, and chest pain. However, these symptoms, particularly the irritating cough, typically appear after the tumor has grown in the larger bronchi; this is often mistaken for a cough following a cold, leading to misdiagnosis or delayed treatment. Therefore, if this type of irritating cough occurs, it is essential to seek medical attention promptly and to undergo chest X-ray or CT scan. Second, as the tumor continues to grow and affects the drainage of the bronchus, secondary lung infections may occur, often characterized by coughing up pus-like sputum, and an increase in the amount of sputum, which should also be noted. Third, a very common symptom is the presence of blood in the sputum, or streaks of blood, or intermittent minor hemoptysis, which must be taken seriously.
What department should lung cancer patients visit?
The first point is that lung cancer can be categorized as a respiratory system disease, so one could visit the respiratory department. However, the respiratory department is not specialized enough for lung cancer, so it is recommended to visit the oncology department instead. After all, lung cancer is a malignant tumor. Initially, one can visit the respiratory department, but once it is confirmed through biopsy that it is lung cancer, it is advised to seek specialized treatment in the oncology department, as it is a malignant tumor.