Lung Cancer

Lung cancer is the leading cause of cancer death for men and women. It is also the most preventable form of cancer. Tobacco use accounts for 87% of lung cancers.
There are two major types of lung cancer:
1. Non-small cell lung cancer (87%)
2. Small cell lung cancer (13%)
Each grows and spreads in different ways and is treated differently.
  • Smoking
  • Excessive alcohol consumption
  • Vitamin A deficiency
  • Cigarette smoking is by far the greatest risk factor for lung cancer.
    • The longer a person uses tobacco and the more they use, the greater their risk.
    • If a person quits before cancer develops, the damaged lung tissue gradually improves.
lung cancer
  • Others at risk include:
    • Nonsmokers who breathe in secondhand smoke.
    • Occupational or environmental exposure to radon, asbestos, certain metals, radiation or air pollution. If
      people are exposed to the above carcinogens & also smoke, their risk is greatly increased.
    • Quitting tobacco use, or not starting at all, is by far the best way to prevent lung cancer.
    • Other ways to reduce your risk include:
      • Avoid secondhand tobacco smoke
      • Eat a healthy, balanced diet with at least five servings of fruits and vegetables every day
      • Take protective measures against cancer-causing chemicals at work
      • Monitor indoor radon levels, especially in the home
    • Persistent cough
    • Sputum streaked with blood
    • Chest pain
    • Voice change
    • Recurrent pneumonia or bronchitis

    These are also warning signs of other, less serious illnesses, so if they appear, they should be discussed with your doctor.


    Surgery to remove tumors, chemotherapy, and radiation—in combination or alone—are common treatments for lung cancer.

    • Surgery – An operation to remove cancer cells.
    • Radiation therapy – Uses high-energy rays to shrink or kill cancer cells.
    • Chemotherapy – Uses anticancer drugs that attack cancer cells and normal cells. These drugs are usually given by injection or by mouth.