What is the presentation of pain in patients with acute pyelonephritis (kidney infection)?

Updated: Jul 01, 2021
  • Author: Tibor Fulop, MD, PhD, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Pain may be mild, moderate, or severe. Flank pain may be unilateral or sometimes bilateral. Discomfort or pain may be present in the back (lower or middle) and/or the suprapubic area. Patients may describe suprapubic symptoms as discomfort, heaviness, pain, or pressure. Upper abdominal pain is unusual, and radiation of pain to the groin is suggestive of a ureteral stone.

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