Which bronchus is more commonly affected by foreign body aspiration?

The right main bronchus is more commonly affected by foreign body aspiration due to its anatomical configuration. The right main bronchus is wider, shorter, and more vertically oriented compared to the left main bronchus. This anatomical structure allows aspirated objects to more easily enter and lodge within the right bronchus, particularly in children, who are more prone to aspiration events due to their exploratory behaviors and the objects they place in their mouths.

The vertical angle of the right bronchus relative to the trachea means that aspirated items tend to take a more direct path into this bronchus. Understanding this anatomical difference is critical in clinical scenarios, as it informs both diagnosis and management of aspirated foreign bodies.

While foreign bodies can technically enter either bronchus, the likelihood of the right side being affected more frequently underscores the importance of being vigilant about this when assessing cases of suspected aspiration in pediatric patients.