What are possible complications of urinary tract infection (UTI)?

Updated: Aug 17, 2021
  • Author: Raisa O Platte, MD, PhD; Chief Editor: Edward David Kim, MD, FACS  more...
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The primary complication of bacteriuria during pregnancy is cystitis, though the primary morbidity is due to pyelonephritis. Other complications may include the following:

  • Perinephric cellulitis and abscess

  • Septic shock (rare)

  • Renal dysfunction (usually transient, but as many as 25% of pregnant women with pyelonephritis have a decreased glomerular filtration rate)

  • Hematologic dysfunction (common but seldom of clinical importance)

  • Hypoxic fetal events due to maternal complications of infection that lead to hypoperfusion of the placenta

  • Preeclampsia [20]

  • Premature delivery leading to increased infant morbidity and mortality

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