April 1999 Asthma is a reversible, obstructive lung disease, caused by an increased reaction of the airways to various stimuli. Asthma can be a life-threatening disease if not properly managed.
Asthma accounts for one in six of all pediatric emergency visits in the United States.
Asthma is the leading serious chronic illness among children. Most children have mild to moderate problems, and their illness can be controlled by treatment at home or in the doctor's office. Asthma accounts for 10 million lost school days annually. It is the leading cause of school absenteeism attributed to chronic conditions. Asthma accounts for one in six of all pediatric emergency visits in the United States.