#auscultation #wheezing #humanbody Expiratory wheezing is an abnormal breathing sound that occurs during the exhalation phase of respiration. This high-pitched, whistling noise can be heard with or without a stethoscope. The sound is usually caused by the narrowing or obstruction of airways due to inflammation, mucus accumulation, or muscle constriction. Conditions commonly associated with expiratory wheezing include asthma, chronic obstructive pulmonary disease (COPD), and bronchitis. In many c