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Airflow obstruction

Reduced ability to move air out of the lungs, especially in obstructive airway disease context.

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What it is

Airflow obstruction means air has trouble moving through the airways.[1,2,3]

Why it matters

COPD and asthma can both involve airflow limitation, but their patterns and reversibility differ.[1,2,3]

What it affects

  • Spirometry is a common way to frame airflow limitation.[1,2,3]

Interpretation traps

  • Airflow obstruction cannot be inferred from breathlessness alone.[1,2,3]

Related conditions

Asthma and airway inflammationCOPD and airflow obstruction