Chronic bronchitis, also known as chronic bronchitis, chronic bronchitis disease development is very different, through active treatment and prevention, some patients with chronic bronchitis disease can be controlled, does not affect work and study. Some patients may develop chronic obstructive pulmonary disease (COPD) or even pulmonary heart disease. If chronic bronchitis is prolonged and poorly controlled, and develops into chronic obstructive pulmonary disease (COPD), it can be accompanied by lifelong chronic cough, sputum, gradually aggravated shortness of breath and dyspnea, and wheezing can occur in severe patients. Chronic obstructive pulmonary disease (COPD) is the most common cause of chronic respiratory failure and pulmonary heart disease in China, with a high mortality rate. It is recommended that patients diagnosed with chronic bronchitis should actively seek medical treatment, and early standardized treatment can often reap better results.