In asthma, the airways that carry air to the lungs (bronchial tubes) are inflamed. This can narrow the airways, causing shortness of breath and making it difficult to breathe.
|Primary Medical Reviewer||E. Gregory Thompson, MD - Internal Medicine|
|Specialist Medical Reviewer||Rohit K Katial, MD - Allergy and Immunology|
|Last Revised||February 13, 2011|