Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Bronchiectasis ?
    ### Response:
    Bronchiectasis (brong-ke-EK-ta-sis) is a condition in which damage to the airways causes them to widen and become flabby and scarred. The airways are tubes that carry air in and out of your lungs.
                
Bronchiectasis usually is the result of an infection or other condition that injures the walls of your airways or prevents the airways from clearing mucus.
    