Bronchospasm (also called bronchoconstriction or bronchial spasm) is a tightening of the smooth muscle that lines the airways (bronchi or bronchioles) in the lung. This tightening can contribute to a worsening of asthma symptoms, such as wheezing, shortness of breath, and coughing.

Bronchospasms can usually be relieved with medicines called bronchodilators.

By	Healthwise Staff
Primary Medical Reviewer	E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer	Rohit K Katial, MD - Allergy and Immunology
Last Revised	February 13, 2011