what is the full form of c o p d
Chronic obstructive pulmonary disease Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long-term breathing problems and poor airflow.[1][8] The main symptoms include shortness of breath and cough with sputum production.[1] COPD is a progressive disease, meaning it typically worsens over time.[9] Eventually everyday activities, such as walking or getting dressed, become difficult.[3] Chronic bronchitis and emphysema are older terms used for different types of COPD.[3][10] The term "chronic bronchitis" is still used to define a productive cough that is present for at least three months each year for two years.[1]