About COPD

What Chronic Obstructive Pulmonary Disease is, what causes it, and how it's diagnosed and managed.

Man with his hands on his chest, illustrating COPD breathing symptoms

Welcome to COPD

What is Chronic Obstructive Pulmonary Disease?

COPD is a chronic respiratory condition that affects the lungs and makes it difficult to breathe properly. It's typically an umbrella term covering two main, often overlapping, conditions:

COPD is a progressive disease – it tends to worsen over time and currently has no cure. However, with early diagnosis and appropriate medical management, its progression can often be slowed and symptoms managed to improve quality of life.

Causes & risk factors

What causes COPD?

Cigarette smoking is the most common cause of COPD, though long-term exposure to other lung irritants can also contribute to the disease developing.

  • Long-term cigarette or tobacco smoking (including secondhand smoke)
  • Prolonged exposure to air pollution, dust and chemical fumes
  • Workplace exposure to certain vapours and irritants
  • A genetic condition called alpha-1 antitrypsin deficiency
  • A history of frequent childhood respiratory infections

Signs to look out for

Common symptoms

Symptoms often develop gradually and can be mistaken for normal signs of ageing, which is why COPD frequently goes undiagnosed in its early stages.

  • Shortness of breath, especially during physical activity
  • A chronic cough, often with mucus production
  • Wheezing or a whistling sound when breathing
  • Chest tightness
  • Frequent respiratory infections and low energy

Diagnosis

How is COPD diagnosed?

If you or someone you know is experiencing ongoing breathlessness, cough or wheezing, it's important to see a GP or respiratory specialist for proper evaluation. Diagnosis is usually confirmed with:

  • A review of symptoms and smoking / exposure history
  • Spirometry – a simple breathing test that measures lung function
  • Chest X-ray or CT scan, in some cases, to rule out other conditions
  • Blood tests, occasionally, to check for related conditions

Management

How is COPD managed?

There's no cure for COPD, but treatment can slow its progression and significantly improve day-to-day symptoms. Management typically involves:

  • Quitting smoking and avoiding lung irritants
  • Inhaled medications to open the airways and reduce inflammation
  • Pulmonary rehabilitation – supervised exercise and education programs
  • Vaccinations (flu, pneumococcal, COVID-19) to reduce flare-up risk
  • Supplemental oxygen therapy or surgery in more severe cases

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