What Causes Chronic Bronchitis?
Chronic bronchitis is primarily caused by long-term irritation and inflammation of the bronchial tubes, which carry air to and from the lungs. The most common cause is smoking, as the harmful chemicals in tobacco smoke damage the lining of the airways, leading to persistent inflammation. Over time, this irritation causes excessive mucus production and a narrowing of the airways, resulting in symptoms like coughing, wheezing, and shortness of breath.
Other factors that can contribute to chronic bronchitis include long-term exposure to environmental irritants such as air pollution, dust, chemical fumes, or secondhand smoke. In some cases, repeated respiratory infections or a history of asthma can increase the risk of developing chronic bronchitis. People with weakened immune systems or underlying lung conditions, such as emphysema, are also more prone to this condition. Reducing exposure to these irritants is key to managing and preventing chronic bronchitis.
