By reviewing medical records, we evaluated the appropriateness of use of indwelling urinary tract catheters in hospitalized patients in Italy. The inappropriate use of an indwelling urinary tract catheter (in 138 [30%] of 461 patients) was significantly associated with greater age, not having undergone a surgical intervention, a good state of consciousness, presence of chronic comorbidities, duration of catheterization, and ward of admission. © 2008 by The Society for Healthcare Epidemiology of America. All rights reserved.