Article Translations: (Spanish)
May also be called: Shortness of Breath; Breathing Difficulty; Breathlessness
Dyspnea (disp-NEE-uh) is difficult or labored breathing.
Many things can trigger an episode of dyspnea, including respiratory tract infections, asthma, exercise, stress, allergic reactions, higher altitudes, obesity, and certain medications.
A small amount of breathing difficulty can be expected from time to time and usually is not a cause for concern.
Dyspnea is a common condition and most episodes of breathing difficulty are brief. If breathing difficulty is severe, persists, or flares up regularly, it could be a sign of a more serious medical condition and should be checked out by a doctor.
All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.
Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
© 1995-2025 KidsHealth ® All rights reserved. Images provided by iStock, Getty Images, Corbis, Veer, Science Photo Library, Science Source Images, Shutterstock, and Clipart.com