Understanding COPD

Key Information:

• The ‘Welcome Mat’ Analogy: Your airways are lined with tiny, self-cleaning hairs (cilia) that act like a welcome mat to trap dust and germs.
• The Damage: Cigarette smoke acts like “toxic mud,” eventually wearing out this mat and destroying the cleaning system. This leads to inflammation and narrowed airways.
• Smoker’s Cough: A persistent cough is not a normal sign of aging. It is the sound of your lungs’ defence system fighting a losing battle to clear irritation without its natural cleaning tools.
• Breathlessness: As the airways become damaged and narrowed, you may find yourself feeling breathless more easily, especially when moving around.
• COPD: This process of damage, where the airflow is obstructed, is called Chronic Obstructive Pulmonary Disease (COPD).

When to Contact Us

Please do not ignore these symptoms or dismiss them as “just a smoker’s cough.”

Contact us for an assessment if:

• Risk Factor: You are over 35 and have ever smoked.
• Persistent Cough: You have a cough that won’t go away or produces phlegm regularly.
• Breathlessness: You get out of breath doing everyday tasks that used to be easy.
• Frequent Infections: You seem to catch chest infections easily, particularly in winter.

Further Information

COPD Diagnosis & Management

Living Well with COPD: Your Management Toolkit

For more detailed information on the symptoms, diagnosis, and management of COPD, please visit the NHS website.

Learn more about COPD

Last reviewed: 26 December 2025
Next review due: 26 December 2028