COPD – Symptoms, Risk Factors, and Stages
COPD is an acronym of Chronic Obstructive Pulmonary Disease. COPD describes lung diseases like chronic bronchitis, emphysema, refractory or non-reversible asthma and some form of bronchiectasis. COPD is characterized by enhanced breathlessness. COPD takes time to develop and has several stages. In the early stages of the disease, the symptoms are not noticeable.