支气管哮喘简称哮喘,是一种气道炎症性疾病,其病因及发病机制目前仍未完全明确。引起哮喘发生、发展的因素很多,其中感染是引起哮喘发病的重要原因。既往研究已证实病毒、支原体、衣原体感染是引起哮喘发病的重要病原体,而细菌感染和哮喘的关系尚未明确。细菌感染是促进哮喘的发生还是对哮喘发生有预防作用,目前尚存在争议。现就细菌感染与哮喘的关系进行综述。1细菌感染与哮喘“卫生假说”认为在生命早期发生感染会降低哮喘等过敏性疾病的发病率,但21世纪初有学者提出易患呼吸道感染的儿童更容易患过敏性疾病。因此,很多学 Bronchial asthma referred to as asthma, is an airway inflammatory disease, the etiology and pathogenesis is still not yet fully clear. Cause asthma, the development of many factors, including infection is caused by an important cause of asthma. Previous studies have confirmed that the virus, mycoplasma, chlamydia infection is an important pathogen causing asthma, and the relationship between bacterial infection and asthma is not yet clear. Bacterial infection is to promote the occurrence of asthma or have a preventive effect on the occurrence of asthma, is still controversial. Now on the relationship between bacterial infection and asthma are reviewed. 1. Bacterial Infections and Asthma Health hygienism suggests that an infection that occurs early in life reduces the incidence of allergic diseases such as asthma. However, some scholars in the early 21st century suggested that children prone to respiratory infections are more likely to develop allergic diseases. Therefore, a lot of learning