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How can tobacco smoke affect your risk of getting lung cancer?

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Tobacco smoke contains more than 4,000 chemical compounds, many of which have been shown to be cancer-causing, or carcinogenic. The two primary carcinogens in tobacco smoke are chemicals known as nitrosamines and polycyclic aromatic hydrocarbons. The risk of developing lung cancer decreases each year following smoking cessation as normal cells grow and replace damaged cells in the lung. In former smokers, the risk of developing lung cancer begins to approach that of a nonsmoker about 15 years after cessation of smoking.

From: Causes of Lung Cancer WebMD Medical Reference

SOURCES:

Lung Cancer Causes from MedicineNet.

National Cancer Institute.

American Cancer Society.

Reviewed by Laura J. Martin on November 23, 2017

SOURCES:

Lung Cancer Causes from MedicineNet.

National Cancer Institute.

American Cancer Society.

Reviewed by Laura J. Martin on November 23, 2017

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How can passive smoking affect your risk for lung cancer?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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