Wheezing is a high-pitched lung sound that’s caused by your breath passing through narrowed airways. Wheezing can be caused by any condition that limits your airflow. ‌ Asthma and chronic obstructive ...

Expiratory wheezing occurs when exhaling or breathing out. Inspiratory wheezing happens when inhaling or breathing in. A wheeze is a whistling noise from the airways. Often the sound is high-pitched ...