COPD
COPD is a chronic lung disease that makes it hard to move air in and out of the lungs, often because of long-term airway inflammation, mucus, and damage to air sacs.
What COPD is
COPD stands for chronic obstructive pulmonary disease. It is a long-term lung condition that blocks airflow and makes breathing harder. The term includes emphysema, chronic bronchitis, and overlapping patterns of lung damage. COPD usually develops gradually, so people may adjust their activity without realizing breathing has changed.
How the lungs change
In COPD, airways can become inflamed, narrowed, and clogged with mucus. The tiny air sacs where oxygen enters the blood can also lose their shape and elasticity. Air may become trapped in the lungs, making it harder to exhale fully and harder to bring in fresh air with the next breath.
Symptoms
Common symptoms include shortness of breath, ongoing cough, wheezing, chest tightness, extra mucus, frequent respiratory infections, fatigue, and reduced ability to exercise or do daily tasks. Symptoms may flare suddenly, especially during infections or exposure to smoke, pollution, dust, fumes, or cold air.
Causes and risk factors
Tobacco smoke is the most important preventable cause of COPD. Other risks include secondhand smoke, outdoor air pollution, indoor smoke from burning fuels, workplace dusts and chemical fumes, repeated childhood lung infections, asthma history, older age, and alpha-1 antitrypsin deficiency, an inherited condition that can damage lungs.
Diagnosis
COPD is diagnosed using symptoms, exposure history, physical exam, and lung function testing. Spirometry is especially important because it measures how much air a person can blow out and how quickly. Chest imaging, oxygen testing, blood tests, or alpha-1 antitrypsin testing may be used in selected cases.
Treatment
Treatment focuses on easing symptoms, preventing flare-ups, slowing damage, and supporting daily function. It may include quitting smoking, inhaled bronchodilators, inhaled corticosteroids for some people, pulmonary rehabilitation, vaccines, oxygen therapy, treatment of infections, action plans for flare-ups, and sometimes lung procedures or surgery.
Living with COPD
Living with COPD often means pacing activity, learning inhaler technique, recognizing flare-up warning signs, staying active within safe limits, avoiding smoke and irritating air, and planning around heat, cold, or air pollution. Anxiety, sleep problems, nutrition, work limits, and caregiver support can become part of care too.
Why it matters
COPD matters because breathing limits can quietly shrink a person's world before the disease is named. Earlier recognition, smoke-free environments, cleaner air, workplace protection, and access to pulmonary rehabilitation can reduce suffering and help people keep more independence for longer.