泌尿道感染是妇女常见病之一,对无症状者可用定量尿培养法普查菌尿症。尿排出后立即培养,或者将尿放于4℃或用硼酸防腐,每毫升尿中的细菌数超过10万称为“有意义的菌尿症”(S B)。S B在一般妇女的发生率为3～5%;在5岁的女学童为1.2%, Urinary tract infection is one of the common women’s disease, asymptomatic quantitative urinary culture can be used to survey bacterial urine disease. Immediately after excretion of urine, the culture is either carried out at 4 ° C or with boric acid and the number of bacteria in excess of 100,000 per ml of urine is called “meaningful bacteriuria” (SB). The prevalence of S B in general women is 3 to 5%; that of female schoolchildren in 5 years is 1.2%