Lung cancer is a malignant tumor that originates in the lungs, often linked to long-term exposure to cigarette smoke, environmental pollutants, or genetic factors. Here are key points about lung cancer:

• Smoking is the leading cause of lung cancer, although non-smokers can also develop the disease due to factors like secondhand smoke, radon exposure, asbestos, and air pollution.
• Symptoms of lung cancer may include persistent cough, chest pain, hoarseness, coughing up blood, shortness of breath, unexplained weight loss, and fatigue.
• Diagnosis typically involves imaging tests such as chest X-rays, CT scans, and PET scans, followed by biopsy to confirm the presence of cancerous cells and determine the type and stage of lung cancer.
• Treatment options vary based on the type and stage of lung cancer but may include surgery, chemotherapy, radiation therapy, targeted therapy, immunotherapy, or a combination of these approaches.
• Early detection through screening programs for high-risk individuals, smoking cessation, reducing exposure to carcinogens, and promoting awareness of lung cancer symptoms are crucial for improving outcomes and reducing mortality rates.