COPD is contagious.

COPD is not an infectious disease, so COPD patients are not infectious. COPD is a chronic respiratory disease, its main clinical symptoms are repeated cough, expectoration, breathing difficulties, its main changes are changes in lung function, so in the absence of infection and other infectious diseases in COPD patients, it is not infectious. However, some patients with chronic obstructive pulmonary disease complicated with lung infection, tuberculosis, which has a certain infectivity, but also limited to these complications are infectious, and chronic obstructive pulmonary disease itself is not infectious.