What May Cause Chronic Bronchitis?

1 Answer

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There are many causes of chronic bronchitis, but the main cause is cigarette smoke. Statistics from the US Centers for Disease Control and Prevention (CDC) suggest that about 49% of smokers develop chronic bronchitis and 24% develop emphysema/COPD. Many other inhaled irritants (for example, smog, industrial pollutants, and solvents) can also result in chronic bronchitis. Viral and bacterial infections that result in acute bronchitis may lead to chronic bronchitis if people have repeated bouts with infectious agents. Also, underlying disease processes (for example, asthma, cystic fibrosis, immunodeficiency, congestive heart failure, familial genetic predisposition to bronchitis, and congenital or acquired dilation of the bronchioles, known as bronchiectasis) may cause chronic bronchitis to develop, but these are infrequent causes compared to cigarette smoking. The major risk factor for individuals to develop chronic bronchitis is tobacco smoking and second-hand tobacco smoke exposure. However, there are others, such as -repeated exposure to pollutants (especially airborne materials such as ammonia, sulfur dioxide, chlorine, bromine, hydrogen sulfide) -dust -repeated bouts of acute bronchitis or pneumonia -gastric reflux (by inhalation of gastric contents) For more details you may consult your dooctor. Keyword: cause chronic bronchitis; chronic bronchitis causes
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