Lung cancer is number one cause of deaths worldwide in both males and females.majorly two type of lung cancer grows and spread, Small Cell Lung Cancer (SCLS) and Non-Small Cell Lung Cancer (NSCLC).
Major causative factors of Lung cancer are:
Smoking
About 90% of lung cancer cases arise from smoking. Risk is increased with number of cigarette smoked and with time it is consumed. Someone who is smoking one packet of cigarette a day is on 25% higher risk than a non smoker.
More than 40,000 chemical compounds are present in tobacco, most of them are carcinogenic or cancer causing.
lungcancercauses