How does the presence of a urinary catheter affect the risk of urinary tract infection (UTI) in males?

Updated: Aug 27, 2019
  • Author: John L Brusch, MD, FACP; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Up to 25% of hospitalized patients have urinary catheters inserted; of these individuals, 10-27% develop UTIs. In fact, UTI accounts for approximately 40% of all nosocomial infections; 15% of these infections occur in clusters and often involve highly resistant organisms.

The single most important risk factor for nosocomial bacteriuria and UTI is the presence of an indwelling urethral catheter; 80% of nosocomial UTIs are associated with the use of urethral catheters. Once the urethral catheter is in place, the daily incidence of bacteriuria is 3-10%. Because most patients who become bacteriuric do so by 30 days, that is a convenient dividing line between short- and long-term catheterization.


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