COPD stages and symptoms

COPD can cause persistent narrowing of the airways and reduced airflow. People may notice a long-lasting cough, cough up phlegm, wheeze, feel chest tightness or become breathless when walking or climbing stairs. These symptoms can occur at different stages, and their intensity can rise during a flare-up. Symptoms alone do not establish the stage or confirm COPD; other lung and heart problems can cause similar complaints.

[Spirometry](/treatments/diagnostics-and-screening/spirometry/) provides objective information about airflow. A clinician also asks about activity limits, previous flare-ups, smoke exposure and other health conditions. Explore [Cough](/symptoms/cough/) or [Coughing Up Phlegm](/symptoms/coughing-up-phlegm/) for symptom-focused information.

Write down when breathlessness occurs, how far you can walk, whether phlegm changes in colour or amount, and how often you need reliever medicine. Bring this record to a [Chronic Disease Review](/treatments/consultations-and-assessment/chronic-disease-review/), where inhaler technique and a flare-up plan can be checked.

Reduce smoke exposure and ask about a [Smoking Cessation Programme](/treatments/lifestyle-and-wellness/smoking-cessation-programme/) if relevant. Do not stop prescribed treatment because symptoms improve; instead, check the plan with your clinician.

Get urgent help for sudden severe breathing difficulty, blue or grey lips, confusion, fainting, inability to speak comfortably or no relief from prescribed rescue treatment. Seek prompt clinical advice if cough or phlegm changes with fever, chest pain or a clear drop in usual activity. The urgency comes from the change and severity of symptoms, not from assuming what a symptom means.

Ask what your spirometry result means, which symptoms should prompt a same-day call, how to recognise your usual flare-up pattern, and how to use each inhaler. Ask whether chest tightness or wheezing needs another assessment.