Urinary tract infection (UTI) accounts for 15.5% of hospitalizations by infectious disease in over age of 65, second only to pneumonia, and they are responsible for 6.2% of infectious disease related deaths. UTI and asymptomatic bacteriuria (ASB) are very common in elderly. Distinguishing symptomatic urinary tract infection from asymptomatic bacteriuria is often difficult especially in old people living in long-term care facilities due to lack of specific symptoms. As the population is getting older, UTIs and ASB in elderly adults represent a significant health care burden. However, there is no exact data on morbidity of UTIs in elderly persons in Korea. This article reviews the prevalence of ASB and the incidence of symptomatic UTIs.

서론
 노인의 특징적인 신체적/생리적 변화
 무증상세균뇨와 요로감염의 정의
 요로감염의 위험인자
 무증상세균뇨의 유병률(Prevalence of ASB)
 증상요로감염의 발생률 (Incidence ofSymptomatic UTI)
 결론
 참고문헌

• 임동훈(조선대학교 의과대학 비뇨의학교실) | Donghoon Lim (Department of Urology, Chosun University College of Medicine, Gwangju, Korea) Corresponding author