What is bronchitis? Bronchitis is an inflammation of the main air passages (bronchi) to the lungs. Coughing often brings up yellow or greenish mucus.

Acute bronchitis, also known as a chest cold, is a short-term inflammation of the bronchi of the lungs. [4][6] the most common symptom is a cough that may or may not produce sputum. [4][19] other … What is acute bronchitis? Bronchitis occurs when the airways of the lungs swell and produce mucus. That’s what makes you cough. Acute bronchitis, often called a “chest cold,” is the most common type …

Bronchitis occurs when the airways of the lungs swell and produce mucus. That’s what makes you cough. Acute bronchitis, often called a “chest cold,” is the most common type …