Description

Lung cancer is the leading cause of cancer deaths worldwide. People who smoke have the greatest risk of lung cancer, though lung cancer can also occur in people who have never smoked. The risk of lung cancer increases with the length of time and number of cigarettes you’ve smoked. If you quit smoking, even after smoking for many years, you can significantly reduce your chances of developing lung cancer. Types of Lung Cancer The two general types of lung cancer include: -Small cell lung cancer. Small cell lung cancer occurs almost exclusively in heavy smokers and is less common than non-small cell lung cancer. -Non-small cell lung cancer. Non-small cell lung cancer is an umbrella term for several types of lung cancers. Non-small celllung cancers include squamous cell carcinoma, adenocarcinomaand large cell carcinoma.