A–Z Glossary

Airway narrowing

A reduction in airway size that makes airflow harder and can cause whistling breathing sounds in babies.

← Back to A–Z Glossary

Search results for: Airway narrowing

Wheezing in babies explained

Wheezing in babies explained

What wheezing in a baby actually sounds like Wheezing is a high-pitched whistling sound that usually happens when air moves through narrowed airways, especially during exhalation. Medically, the sound reflects resistance in the bronchial tree, often from airway swelling, mucus, or spasm. In a baby, the sound can be subtle, intermittent, or loud enough to […]