06/02/2026
Bronchitis is an inflammation of the bronchial tubes, the airways that carry air to your lungs. It causes a persistent cough that often brings up mucus, chest discomfort, and difficulty breathing. Bronchitis can be acute, often caused by viral infections like the common cold, or chronic, typically resulting from longterm irritation such as smoking. Proper medical treatment and rest are essential for recovery and preventing complications.