Lung cancer is caused primarily by cigarette smoke.

Lung cancer. From the name of the disease course was horrified to hear that. Lung cancer is one disease that has a high mortality rate in the sufferer. In fact, according to World Health Organization (WHO), lung cancer is the leading cause of death in the group of cancer in both men and women.


Lung cancer is the growth of cancer cells that are not controlled in the lung tissue that can be caused by a number of environmental carcinogens, especially cigarette smoke. The majority of lung cancers derived from cells in the lungs, but lung cancer can also originate from cancer in other parts of the body that spreads to the lungs.


Approximately 90% of cases of lung cancer in men and about 70% in women are caused primarily by smoking. The more cigarettes smoked, the greater the risk for lung cancer.


The tobacco industry considered that the relationship between the number of patients with lung cancer with high consumption of cigarettes is only a coincidence. However, from various studies show a positive correlation is very consistent and that the only cause of lung cancer in general is the consumption of cigarettes


Only a small proportion of lung cancers (about 10% -15% in men and 5% in women) caused by or inhaled substances encountered in the workplace. Working with asbestos, radiation, arsenic, chromate, nickel, chloromethyl ethers, mustard gas and coke oven emissions can cause lung cancer, although usually only occurs in workers who also smoke.


The role of air pollution as a cause of lung cancer is still not known. Some cases occur because of exposure by radon gas in the household.

Sometimes lung cancer (particularly adenocarcinoma and alveolar cell carcinoma) occurred in people who had had her lung scarring due to other lung diseases, like tuberculosis and fibrosis.