A wheeze is the whistling sound air makes when your breathing tubes are narrowed. This is what happens during an asthma flare-up. If the breathing tubes get too narrow, a person may have trouble breathing. Sometimes you can hear someone wheeze, but usually a doctor needs to listen to a person's lungs with a stethoscope to hear wheezing.
Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
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