Thanks for the question! There would always be such questions.
I explain. Chronic bronchitis occurs from prolonged damage to the bronchi by some kind of debris or chemistry. More often this is due to smoking, but sometimes it is possible to get chronic bronchitis in hazardous industries.
Chronic bronchitis is never completely recovered. There will be a cough for several months a year. Sometimes such a cough will intensify, purulent sputum will appear, body temperature will rise, and shortness of breath may begin. This is an exacerbation of chronic bronchitis.
Cold
If you have snot and sore throat, it may be accompanied by a cough. In a healthy person, every common seasonal cold may be accompanied by a cough. And in a patient with chronic bronchitis, a viral cold will be accompanied by an exacerbation of bronchitis. In addition to viruses, bacteria also take part there.
Of all the reasons for exacerbations of chronic bronchitis, the common cold occupies somewhere around 70%.
Remaining 30%
There is more often air pollution or pulmonary embolism, or it is not clear why.
Air pollution
There is ozone, carbon monoxide, the smallest dust particles, exhaust gases.
Pulmonary embolism
It is believed that about 20% of people with exacerbation of chronic bronchitis have pulmonary embolism. It manifests itself similarly - cough with shortness of breath. Moreover, it is usually not possible to find out whether it was bronchitis that caused thromboembolism, or thromboembolism led to an exacerbation of bronchitis, or whether they started in parallel. A mysterious reason.
Inexplicably
Inexplicably.
I also recommend reading my articles on ozone air pollution. Someone is constantly trying to argue on this topic. Here are the articles in these strange links with a small picture:
