Pyelonephritis causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Causes

Common Causes

• Most cases of "community-acquired" pyelonephritis are due to bowel organisms that enter the urinary tract. Common organisms are:
  • E. coli (70-80%)
  • Enterococcus faecalis

• Hospital-acquired infections may be due to coliforms and enterococci, as well as other organisms uncommon in the community.
  • Klebsiella spp.
  • Pseudomonas aeruginosa