What is the difference between chronic bronchitis and emphysema?

Sputum :): In chronic bronchitis cough is very prevalent and typically productive of sputum. The classic definition is daily productive cough for 3 months out of a year. Emphysema can be associated with cough but shortness of breath is more common. There are also a significant number of patients who overlap between both illnesses.

COPS: Emphysema and chronic bronchitis are two conditions termed COPD or chronic obstuctive pulmonary(lung)disease.Emphysema is long term progressive disease which causes shortness of breath .The tissue necessary to suppot sructure of the lung is destroyed chronic bronchis is chronic inflammation of bronchi which causes cough and sputum production at least for three months in two successive years.

COPD...: Both are forms of COPD so both are chronic, incurable diseases typically caused by smoking. Emphysema patients have shortness of breath as the primary symptom whereas chronic bronchitis patients have a chronic cough productive of sputum. Both are slowly progressive but treatment will decrease symptoms.