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Asthma

Asthma is a long-term (chronic) disease of the respiratory system. It causes your airways to tighten and become narrow. This makes it hard to breathe and may cause wheezing and coughing.

Even though asthma is a lifelong disease, most people can lead active lives by following a treatment plan, avoiding things that cause flare-ups, and taking medicine.

The cause of asthma is not clearly known.

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerRohit K Katial, MD - Allergy and Immunology
Last RevisedFebruary 22, 2013

WebMD Medical Reference from Healthwise

Last Updated: February 22, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.