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What causes lung cancer?

Lung cancer results from damage to lung cells that causes them to replicate uncontrollably. In most cases this damage is caused directly by smoking or by second-hand smoke.

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About this article

Author: Dr Joanne Van der Velden PhD, BSc (Hons)
First answered: 18 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.1 out of 5
Votes: 1158 (Click smiley face below to rate)
Category: Chronic obstructive pulmonary disease


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