What is a common sign of asthma?

Wheezing is a common sign of asthma due to the constriction and inflammation of the airways that occurs during an asthma attack. This constriction leads to a narrowing of the air passages, causing the airflow to be turbulent as it moves in and out of the lungs. The characteristic high-pitched whistling sound known as wheezing occurs during breathing, especially during exhalation. This sound is often a clear indicator of an asthma exacerbation and can help differentiate asthma from other respiratory conditions.

Other signs associated with asthma could include difficulty breathing, coughing, and a feeling of tightness in the chest, but wheezing is specifically recognized as a hallmark symptom. The presence of wheezing often prompts individuals to seek medical attention or use their rescue inhaler, making it a crucial sign to recognize in asthma management.