近十多年由于厌氧培养方法的突破,从人体中培养出无数厌氧菌新种,迅速发展成为引人注目的新学科——厌氧细菌学。给临床感染性疾病带来许多新的概念和认识,大大提高其诊断和治疗水平。一、厌氧菌是正常菌群主要组成:胎儿无菌、出生后数小时,环境中细菌即进入定居,集中在口腔、肠道、阴道和皮肤称四大菌库中。过去认为正常菌 In recent ten years, due to the breakthrough of anaerobic culture method, many new species of anaerobic bacteria have been cultivated from the human body and rapidly developed into a new discipline attracting attention - anaerobic bacteriology. It brings many new concepts and recognitions to clinical infectious diseases and greatly improves its diagnosis and treatment. First, the anaerobic bacteria are the main components of normal flora: Fetal sterile, a few hours after birth, the environment that bacteria into the settlement, concentrated in the mouth, intestine, vagina and skin, said the four strains of bacteria in the library. In the past that normal bacteria