Asthma airway inflammation loop

This causal loop diagram illustrates one simplified pathway in asthma. Trigger exposure can increase airway inflammation, which can increase bronchoconstriction and airflow obstruction. Greater obstruction can increase respiratory effort and airway irritation, potentially adding to inflammation. The reinforcing loop highlights why symptoms may worsen without a balancing influence. It deliberately avoids treatment choices, severity classifications and patient-specific triggers so the causal structure stays easy to read. Add those only when the intended audience can explain each sign and feedback relationship. Use the diagram for education or discussion, not as a substitute for a personal asthma action plan, emergency assessment or professional medical advice.