Lung Cancer Causes
There are two types of Lung cancer which are small cell lung cancer(SCLC)and non-small cell lung cancer(NSCLC).
Non-small lung cancer accounts for approximately 85% of all cases of lung cancer. Following are the risk factors that will cause a normal cell to become cancerous cells;
Smoking and Pre smoking
Smoking Cigarette is the leading cause of lung cancer. About 80% of lung cancer deaths are caused by smoking, and many others are caused by exposure to secondhand smoking. The emergence of the lung cancer epidemic in the 20th century no doubt been caused by cigarette smoking. Recent studies have reported that passive smoking during childhood increased lung cancer risk in adulthood by 3.6 fold.
Causes of Lung Cancer in Non-smokers
Although smoking is the leading cause of lung cancer even cases of Lung Cancer also seen in those people who had never smoked but who lived with a smoker. Many people with lung cancer are former smokers, but many others never smoked during their lifetime. Researchers have made a lot of progress in understanding what are the causes of lung cancer in non-smokers and lung cancer in non-smokers is caused by;
- Radon Gas
- Second-Hand Smoking
- Gene Mutations
- Air Pollution
- Cancer-causing agents
Other than smoking, lung cancer is also caused by well known human carcinogens such aschrysotile asbestos. Asbestos is commonly used in many household materials and industrial building products Workers exposed to asbestos fiber are at a higher risk of developing devastating asbestos lung cancer. Smokers who worked with asbestos have an even higher risk of developing lung cancer.