Bronchiectasis-causes-symptoms-and-diagnosis What is Bronchiectasis Bronchiectasis is a lung ailment in which the bronchial tubes of the lungs become chronically swollen, dilated, and damaged. As a result of that, airways are compressed which can lead to bacteria and mucus developing in your lungs.  People with bronchiectasis frequently experience infections and airway obstructions. Although there is no permanent cure for bronchiectasis, it