Causes of Pneumonia

The body of every human being is provided with mechanisms to protect lungs from infection.  The nasal cilia screen out most of the organism in the air passage. White blood cells (leukocytes), a key part of your immune system, begin to attack the invading organisms. The accumulating pathogens, white cells and immune proteins cause the air sacs to become inflamed and filled with fluid, leading to the difficult breathing that characterizes many types of pneumonia. If both lungs are involved, it is termed as double pneumonia.

Other common causes include consumption of too much alcohol. If someone’s unconscious, it’s possible to aspirate the liquid contents and possibly solid food from the stomach into the lungs, causing aspiration pneumonia.



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