. Risk factors of lung cancer and investigations required

Risk Factors of Lung Cancer

Lung cancer is one of the most prevalent cancers worldwide, with a high mortality rate. Understanding its risk factors is crucial for early detection and prevention. Several factors contribute to the development of lung cancer:

1. Smoking: This is the most significant risk factor for lung cancer. Tobacco smoke contains carcinogens that damage lung cells, leading to mutations and eventually cancerous growths. Both active smoking and exposure to secondhand smoke increase the risk.

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