Understanding the Causes of Lung Cancer
Lung cancer develops when abnormal cells in the lungs grow uncontrollably, often due to prolonged exposure to harmful substances. The causes of lung cancer vary, with smoking being the leading risk factor. However, non-smokers can also develop lung cancer due to factors like air pollution, exposure to carcinogens such as asbestos and radon gas, and genetic predisposition. Occupational hazards and secondhand smoke further contribute to the risk. Understanding these causes can help individuals identify potential threats and make informed health decisions.
What are the Risk Factors and Causes of Lung Cancer?
Several factors can raise the risk of lung cancer. Certain risk factors can be controlled, such as stopping smoking. And other factors are out of control, such as family history.
Lung cancer risk factors include, but are not limited to:
- Smoking
- Exposure to 2nd-hand smoke
- Past radiotherapy
- Exposure to radon (Radon is a naturally occurring radioactive gas that can cause lung cancer) emissions
- Exposure to asbestos or other cancer-causing substances
- Family history of lung carcinoma
Frequently Asked Questions (FAQs):
Q1. What is the leading cause of lung cancer?
A. Smoking is the primary cause of lung cancer, responsible for the majority of cases. However, non-smokers can also develop lung cancer due to other risk factors.
Q2. Can lung cancer develop without smoking?
A. Yes, lung cancer can occur in non-smokers due to factors like air pollution, exposure to radon gas, asbestos, secondhand smoke, and genetic mutations.
Q3. How does air pollution contribute to lung cancer?
A. Long-term exposure to polluted air, including fine particulate matter and toxic chemicals, can damage lung tissue and increase the risk of lung cancer over time.
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Author Bio:
Dr. Yashashree Joshi – MBBS, MD (Philippines)
Dr. Yashashree Joshi, MD, is a globally-trained oncologist with a robust academic background and extensive experience in pioneering cancer treatments. Dedicated to patient-centered care, she continually integrates the latest advancements in oncology to provide her patients with innovative and personalized treatment plans.
Content Medically Reviewed By MedicoExperts Editorial & Clinically Review Board
