Acute Bronchitis : Causes
Inflammation of the main air passages to the lungs (called the bronchi) and the complications related to it, collectively lead to the condition called Acute Bronchitis. During Acute Bronchitis, sticky mucus fills up the bronchi causing them to swell up. This inflammation impedes the flow of air in and out of the lungs, causing great discomfort to patients.
Bronchitis generally follows a viral infection of the lungs. Common cold can also cause bronchitis. In common cold, an infection of the respiratory tract accompanied by inflammation of the air passages of the lungs, sets the stage for bronchitis followed by bacterial infection.