绿脓肝菌是革兰氏阴性杆菌,营养要求不高,能产生蓝绿色水溶性色素使培养基变为蓝绿色,对紫外线抵抗力较强,对化学药品的抵抗力较一般革兰氏阴性菌要强,在高温多湿的环境极易繁殖,常见于污水、下水道和土壤中,也可污染医疗器械。在通常情况下可从正常人粪便和皮肤上查出,但致病力不大。如果身体防御机能减弱或大面积烫伤时,医疗用具(如导尿管、气管插管)污染或身体其他化脓菌受抗菌素应用受到抑制而绿脓杆菌在体内大量繁殖时就成为重要的致病菌。本文报告两例均发生在炎热夏季,并不 Pseudomonas aeruginosa is Gram-negative bacilli, nutritional requirements are not high, can produce blue-green water-soluble pigment to make the medium into a blue-green, strong resistance to ultraviolet light, chemical resistance than the average Gram-negative Strong bacteria, easy to breed in hot and humid environment, common in sewage, sewer and soil, but also contaminate medical equipment. Under normal circumstances can be detected from normal human feces and skin, but not pathogenic. Pseudomonas aeruginosa becomes an important pathogen when it is multiplied in vivo if it is contaminated with medical devices (such as urinary catheters and endotracheal tubes) or other purulent bacteria are inhibited by antibiotic use if the body defense function is impaired or extensive scalding occurs . This article reports two cases occurred in the hot summer, not