What reason is mouth phlegm very thick

summary

The onset of senile chronic bronchitis is insidious, mostly in young and middle-aged people, and a few in old age. Patients had more cough and expectoration than those in the cold season. With the development of the disease, cough and expectoration all the year round in the later stage of the disease worsened in winter and spring. What's the reason for the phlegm? Let me talk about it.

What reason is mouth phlegm very thick

First: smoking is the main cause of chronic bronchitis. The incidence rate of chronic bronchitis is 4~5 times higher than that of non-smokers, and the incidence rate increases with the increase of smoking years and smoking. Tobacco smoke contains a variety of harmful components, such as tar, nicotine, carbon monoxide, furfural and so on.

Second, air pollution, harmful gases in the atmosphere, such as nitrogen oxide, sulfur dioxide, chlorine, have stimulating and cytotoxic effects on bronchial mucosa, which can cause inflammation of the mucosa; Harmful organic and inorganic dusts in the atmosphere, such as silica, pulverized coal, cotton dust and sugarcane dust, can also cause the proliferation of lung fibrous tissue, damage the lung clearance function and create conditions for the invasion of pathogenic microorganisms.

Third: the infection of pathogenic microorganisms is another important factor of chronic bronchitis.

matters needing attention

Climate change, especially cold, dry and high heat, can damage the ciliary function and the blood circulation of the respiratory tract mucosa, reduce the local barrier function and easily lead to the secondary infection of pathogenic microorganisms.