尿路感染是一个很常见的疾病,在妇女更为多见。这与它解剖上的特点和生理作用有密切关系。虽然近三、四十年来采用各种抗菌药物治疗,但其发病率,复发率和病死率仍未见降低。1958年Logan及Cushion报告发病率为1.1％,1974年Gallagher报告为1.8％。1976年Sanford报导女性一生中曾患尿路感染者占10—20％,成年女性患尿路感染者占6％。再发率也高,据统计一年半内再发者占70％。有报告肾盂肾炎的死亡率 UTI is a very common disease that is more common in women. This is closely related to its anatomical features and physiological functions. Although various antimicrobial agents have been used in the last three or four decades, their morbidity, relapse rate and mortality have not been reduced. The incidence of Logan and Cushion reported in 1958 was 1.1%, Gallagher 1974 reported 1.8%. In 1976, Sanford reported 10-20% of women’s lifetime urinary tract infections and 6% of adult women with urinary tract infections. The recurrence rate is also high, according to the statistics within a year and a half again accounted for 70%. There are reports of pyelonephritis mortality