留置导尿是医院内尿路感染的重要原因之一。自从采用封闭式引流系统以来,这种感染的发生率已减少。间歇导尿有时取代留置导尿,过去的感染发生率在4～75%之间,这取决于导尿次数和导尿持续时间、病种以及由本人或别人给导尿等等。导尿时防止尿路感染主要是无菌技术操作,但有时情况未必许可,例如给术后或昏迷病人导尿时,体 Indwelling catheterization is one of the most important causes of urinary tract infections in hospitals. Since the introduction of a closed drainage system, the incidence of this infection has decreased. Intermittent catheterization sometimes replace indwelling catheterization, the incidence of past infections in the 4 to 75%, depending on the number of catheterization and catheterization duration, disease and catheterization by myself or others and so on. Urinary tract infection to prevent urinary tract infections is mainly aseptic technique operation, but sometimes the situation may not be allowed, for example, postoperative or coma catheterization, the body