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The major cause of lung cancer is tobacco smoke. 8 out of 10 lung cancers are due to tobacco smoke.

Lung Cancer also caused when exposed to carcinogens. Such as radon and biscgomethylether. We may contact these cancer causing agents in the daily life. Such as:

a) occupation

abaskestor insulation

people working in the manufacturing industries.

b) living in urban areas.

c) close relatives have had lung cancers.

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All these factors increased the risk of having lung cancer

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