| Bronchitis is an inflammation of the main air passages | | | | respiratory tract and the lung itself may be infected, |
| (bronchi) to your lungs. It causes a cough, shortness | | | | and you may have pneumonia. |
| of breath and chest tightness. Coughing often brings | | | | When the main air passageways in your lungs |
| up yellow or greenish mucus. There are two main | | | | (bronchial tubes) are inflamed, they often produce |
| types of bronchitis: acute and chronic. | | | | large amounts of discolored mucus that comes up |
| Bronchitis Symptoms | | | | when you cough. If this persists for more than three |
| Cough is a common symptom of bronchitis. The | | | | months, it is referred to as chronic bronchitis. Mucus |
| cough may be dry or may produce phlegm. Significant | | | | that isn't white or clear usually means there's a |
| phlegm production suggests that the lower | | | | secondary infection. |