遗传和环境是Ⅰ型变应性疾病发病的两大重要因素。近20多年来,变应性鼻炎(allergic rhinitis,AR)的流行成倍增加,尤其是在西方工业发达国家。据欧美统计,在近10年中,AR发生率增加了约30%。随着我国工业化的发展,AR的发生率也在不断增加,这种全球性AR发病率急剧上升趋势难以单独 Genetics and environment are two important factors in the development of type Ⅰ allergic diseases. Over the past 20 years, the prevalence of allergic rhinitis (AR) has doubled, especially in western industrialized countries. According to Europe and the United States statistics, in the past 10 years, the incidence of AR increased by about 30%. With the development of industrialization in our country, the incidence of AR is also increasing, which is difficult to separate from the sharp increase of global AR incidence