COPD is a progressive lung condition causing breathing difficulties that gradually worsen over time. It is largely preventable β smoking is the leading cause β and highly manageable with the right treatment plan.
Chronic obstructive pulmonary disease (COPD) is an umbrella term for progressive lung conditions β primarily chronic bronchitis and emphysema β characterised by persistent airflow limitation that is not fully reversible. The hallmark symptom is breathlessness on exertion that worsens over time, accompanied by chronic productive cough and frequent chest infections. COPD is the third leading cause of death globally.
In Korea, cigarette smoking remains the primary cause of COPD, with historically high smoking rates among older men being a major contributing factor to the country's COPD burden. Seasonal fine dust (λ―ΈμΈλ¨Όμ§) and ultrafine dust (μ΄λ―ΈμΈλ¨Όμ§), which recur through the year and spike during spring yellow dust (ν©μ¬) events, are an additional and increasingly recognised risk factor for lung health in Korea. Occupational dust and chemical exposure in industrial sectors is also relevant.
Diagnosis requires spirometry (lung function test) β a simple, non-invasive breathing test that measures how much air you can blow out and how fast. COPD is confirmed when the FEV1/FVC ratio is below 0.70 after bronchodilator use. Treatment is staged based on severity: short-acting bronchodilators (SABA/SAMA) for mild symptoms; long-acting bronchodilators (LABA/LAMA) as maintenance; inhaled corticosteroids added for frequent exacerbations. Pulmonary rehabilitation β an exercise and education programme β significantly improves breathlessness and quality of life. Smoking cessation is the single most effective intervention to slow COPD progression.
Key Points
- Leading cause in Korea: cigarette smoking, particularly among older men
- Symptoms: progressive breathlessness, chronic cough, sputum production
- Diagnosed by spirometry β a simple breathing test available at community health centres and hospitals
- Not fully reversible β but progression significantly slowed by stopping smoking
- Inhaled bronchodilators are the cornerstone of COPD treatment
- Pulmonary rehabilitation improves exercise capacity and quality of life
Causes & Risk Factors
- Cigarette smoking β most important risk factor, especially with long-term use
- Seasonal fine dust and air pollution β a recurring concern in Korea
- Occupational dust and chemical exposure
- Indoor air pollution from poor ventilation
- Genetic predisposition β alpha-1 antitrypsin deficiency (rare but important)
When to See a Doctor
- Persistent cough, increased sputum, or breathlessness on exertion
- Frequent chest infections β more than 2 per year may suggest COPD
- If you are a current or ex-smoker over 40 with respiratory symptoms
- For spirometry if COPD is suspected β essential for diagnosis
- If you experience a sudden worsening of breathlessness β COPD exacerbation may require urgent treatment
For emergencies in Korea, call 119
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This content is published for educational purposes only. For accurate diagnosis and personalised treatment, consult a licensed KMA physician in Korea.
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This article is published by DoctorsInKorea.com for educational and informational purposes only. It does not replace a professional clinical evaluation by a licensed healthcare provider. For accurate medical diagnosis and personalised treatment paths, please book an appointment with a licensed KMA physician. For immediate life-threatening medical emergencies in Korea, please call 119.
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Last reviewed: May 29, 2026