慢性支气管炎多田急性支气管炎反复发作转变而成,也常继发于支气管哮喘、支气管扩张、心脏病等疾病,长期多量吸烟也是促成本病的重要因素。此病病程较长,慢性阵发性咳嗽及咯吐黏液样痰,天气寒冷时往往加重,咳嗽在夜晚较剧。过度疲劳也可引起咳嗽,病人常有气短的感觉。通常无发热,如病程中有发热,咯吐脓性痰,为慢性支气管炎继发感染。 Chronic bronchitis caused by recurrent attacks of TATA acute bronchitis is also often secondary to bronchial asthma, bronchiectasis, heart disease and other diseases, long-term excessive smoking is also an important factor contributing to the disease. The longer course of the disease, chronic paroxysmal cough and mucoid sputum sputum, the weather is often aggravated, the cough at night more drama. Excessive fatigue can also cause cough, often with shortness of breath. Usually no fever, such as fever in the course of the disease, slightly spit purulent sputum, secondary to chronic bronchitis infection.