Smoking the risk of lung cancer strongly. Promising lung cancer significantly. The lung is an organ that smoke the most. This is the most serious disease from smoking. The early stages of lung cancer have no symptoms when the symptoms show. The disease is very Symptoms include chronic cough, sputum with blood, weight loss, fatigue, mild fever, chest pain for patients with lung cancer. In a very Symptoms are coughing up blood Rapid weight loss Ribs, collarbone and kneecap pain or dyspnea may have. Swelling around the face, neck, arms and upper chest, headache, lethargy, difficulty swallowing food. Can not hold urine And rejects it