近二十年来,真菌感染特别是条件系统性真菌病的发病率在逐渐增加。本文对本病的病原学,所致常见病,诊断和治疗加以综述。一、病原学和发生机制系统性真菌感染是指病人的防御机制有缺陷, In the recent two decades, the incidence of fungal infections, especially conditional systemic mycosis, has been gradually increasing. This article on the etiology of the disease, common diseases, diagnosis and treatment are reviewed. First, the etiology and pathogenesis Systematic fungal infection is the patient’s defense mechanism is flawed,