Causes Of Lung Cancer

06 Apr, 2021

Dr. Rajesh Bollam

Anyone can get lung cancer, but 90 percent of lung cancer cases are the result of smoking.

From the moment you inhale smoke into your lungs, it starts damaging your lung tissue. The lungs can repair the damage, but continued exposure to smoke makes it increasingly difficult for the lungs to keep up the repair.

Once cells are damaged, they begin to behave abnormally, increasing the likelihood of developing lung cancer. Small-cell lung cancer is almost always associated with heavy smoking. When you stop smoking, you lower your risk of lung cancer over time.

Exposure to radon, a naturally existing radioactive gas, is the second leading cause, according to the American Lung Association.

Radon enters buildings through small cracks in the foundation. Smokers who are also exposed to radon have a very high risk of lung cancer.

Breathing in other hazardous substances, especially over a long period of time, can also cause lung cancer. A type of lung cancer called mesothelioma is almost always caused by exposure to asbestos.

Other substances that can cause lung cancer are:

arsenic
cadmium
chromium
nickel
some petroleum products
uranium

Inherited genetic mutations may make you more likely to develop lung cancer, especially if you smoke or are exposed to other carcinogens.

Sometimes, there’s no obvious cause for lung cancer.

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Causes Of Lung Cancer

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