Anyone can get a lung cancer but chronic smokers are more prone to this disease. People who work in chemical factories involving substances like arsenic, asbestos and petroleum products are also at a high risk of developing lung cancer.

Lung cancer can be diagnosed with imaging tests like X-ray and CT scan which shows the presence of tumour. Other tests include sputum and blood tests. Biopsy of the tumour in lungs helps in confirming the diagnosis. PET scan not only keeps in check the spreading of cancer, but it also checks for any relapse.

Treatment depends upon the type of cancer and stage at which it is detected. Surgery is an obvious choice to remove the unhealthy tissue along with healthy margins. Radiation therapy which uses X-rays and protons to kill cancer cells along with chemotherapy drugs are usually added with the surgery for more effective treatment of lung cancer.

Yoga and breathing exercises can help in strengthening the respiratory muscles which assists in breathing; and also in general it improves the quality of life.

Yes, surgery is very vital in lung cancer treatment as it is essential to remove the affected cancerous part from the lungs. It is a preferred line of treatment which is usually done along with either radiotherapy or chemotherapy to remove all the cancer cells from the body.