Smoking and Lung Cancer

Approximately 85% of lung cancer cases occur each year related to smoking.

More than a pack a day cigarette jçen people, compared to those with no smokers are 20 times more risk of lung cancer, two packs a day for 20 years or more of the risk in smokers, according to the 60-70 times higher than non-users.

Stop smoking, if you leave your risk of developing lung cancer will be reduced, but not decrease the level of never smokers.

Today, lung cancer is more common among men. however, smoking among women have increased incidence of lung cancer in women is increasing. She currently is the most common cause of cancer deaths of lung cancer in women breast cancer is approaching.

The number of cigarettes a day you drink and you drink the amount of nicotine and tar in cigarettes increases the risk of lung cancer is increasing. In addition, the environment increases the risk of breathing in cigarette smoke. Cigarette smoke, contains a series of poison gas, and small droplets of tar.

Tar various carcinogens (cancer-causing substances) and kokarsinojenler (substances that accelerate the proliferation of cancer cells) are available. Associated with the use of most types of non-small cell lung cancer and cancers developing squamous epithelium. Small-cell cancer spreads very quickly and are seen in men who smoked the most extreme. Non-smokers are rare.


Cigarette smoke by 2-6%, affecting the body’s oxygen-carrying and using a very toxic gas, carbon monoxide include yeneğini. Non-smoke inside the lining of the airways and lung irritants to extract unwanted substances shaky hairs (cilia) impairs the function and also the normal balance of enzymes in the lungs impairs the respiratory system diseases, causes the formation of more easily.

Previously smoked more than 20 days, but who do not smoke for 10 years, two thirds the mortality rate is decreasing. however, this rate reaches never smoked ones. Unfortunately, many people came out smoking, lung disease or cancer in man