 Unfortunately, most of the lung cancer patients come to us at an advanced stage. The early stage lung cancers can be detected only if the patients pay attention to their symptoms. The most common symptoms are cough and blood in the sputum which we call haemoptysis. There may be symptoms because of the spread of the disease like pain in the bones and other symptoms because of loss of weight etc. Now once the patient comes to us there are a battery of investigations including CT scan, PET scan, oblongoscopy and the other investigations which lead us to a diagnosis of a lung cancer. Lung cancer if found in stages 1 and 2 can be cured by a combination of surgery, chemotherapy and radiotherapy. A stage 3 or 4 cancers are treated by more complex means.