Pulmonary fibrosis is a progressive scarring of the lungs that increasingly interferes with a patient's ability to breathe.
Chronic Obstructive Pulmonary Disease (also called Chronic Obstructive Airway Disease and Chronic Obstructive Lung Disease) refers to a group of lung..
Bronchitis occurs when the lining of the bronchial tubes becomes inflamed. This inhibits airflow to and from the lungs, causing heavy mucus or phlegm to be coughed up.
Bronchiectasis is a lung condition that causes cough, sputum production, and recurrent respiratory infections.