What is the typical presentation of 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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The classic presentation in acute pyelonephritis is the triad of fever, costovertebral angle pain, and nausea and/or vomiting. These may not all be present, however, or they may not occur together temporally. Symptoms may be minimal to severe and usually develop over hours or over the course of a day. Infrequently, symptoms develop over several days and may even be present for a few weeks before the patient seeks medical care. Symptoms of cystitis may or may not be present to varying degrees. These may include urinary frequency, hesitancy, lower abdominal pain, and urgency.

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