Definition: Asthma

Print this page Bookmark and Share
Parents
Asthma
(Asma)

Asthma is a chronic lung disorder that causes airways (the tubes that carry air into and out of the lungs) to become inflamed, which means that they swell and produce lots of thick mucus. The muscles surrounding the airways also tend to tighten, which makes the already clogged airways even narrower. This results in asthma symptoms, which can include coughing, wheezing, and shortness of breath. In a person with asthma, the airways are overly sensitive to certain things (such as allergies, viral infections, cold air, exercise, and smoke) that can "trigger," or bring on, asthma symptoms. People with asthma often find that their symptoms come and go - when the symptoms are present, it's known as a flare, flare-up, episode, exacerbation, or attack.





Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

© 1995-2014 KidsHealth® All rights reserved.
Images provided by iStock, Getty Images, Corbis, Veer, Science Photo Library, Science Source Images, Shutterstock, and Clipart.com



 

Upcoming Events

The Neighborhood Leadership Institute Alumni Association will be hosting an injury prevention class and giving away free bicycle helmets while supplies last.

Bike safety education and helmet giveaway event, while supplies last.

The West Carrollton Police Department will be hosting a bike safety education program.

Health Fair and Bike Safety Education event

View full event calendarView full event calendar

Health and Safety

Your child's health and safety is our top priority

Accreditations

The Children's Medical Center of Dayton Dayton Children's
The Right Care for the Right Reasons

One Children's Plaza - Dayton, Ohio - 45404-1815
937-641-3000
www.childrensdayton.org