2005 年 20 巻 1 号 p. 54-57
Pollinosis, especially by cedar pollen, is discussed in the present paper. According to a recent report, the prevalence of cedar pollinosis patients was 16.2% in Japan. The main reason of increasing the cedar pollinosis patients in Japan is the postwar planting policy. In the present report, we review the mechanisms of pathogenesis, methods for clinical examination and treatments of pollinosis by cedar pollen.