Lung Cancer

Lung cancer occurs when cells in the lungs grow uncontrollably and form tumors. It is broadly classified into two types: Non-small cell lung cancer (NSCLC) – the most common form, and Small cell lung cancer (SCLC) – which is more aggressive and spreads faster.

Smoking is the leading cause of lung cancer, but it can also occur in non-smokers due to environmental exposure, genetic predisposition, or occupational hazards.

Key Facts:

• Leading cause of cancer death worldwide
• Often diagnosed in later stages
• Symptoms can mimic respiratory infections

Symptoms:

• Persistent cough
• Chest pain
• Coughing blood
• Shortness of breath
  
  

Causes:

• Smoking
• Exposure to asbestos, radon gas
• Air pollution
  
  

Treatment:

• Surgery
• Chemotherapy
• Targeted drug therapy
• Immunotherapy
  
  

Prevention:

• Quit smoking
• Avoid secondhand smoke
• Protective gear in polluted environments