Kidney Infection (Pyelonephritis)

  • Medical Author:
    Melissa Conrad Stöppler, MD

    Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

  • Medical Author: Siamak N. Nabili, MD, MPH
    Siamak N. Nabili, MD, MPH

    Dr. Nabili received his undergraduate degree from the University of California, San Diego (UCSD), majoring in chemistry and biochemistry. He then completed his graduate degree at the University of California, Los Angeles (UCLA). His graduate training included a specialized fellowship in public health where his research focused on environmental health and health-care delivery and management.

  • Medical Editor: William C. Shiel Jr., MD, FACP, FACR
    William C. Shiel Jr., MD, FACP, FACR

    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Quick GuideWhat's Causing Your Abdominal Pain?

What's Causing Your Abdominal Pain?

What are the signs and symptoms of kidney infection?

Some of the common symptoms of kidney infection include:

Signs of kidney infection on exam may include:

  • fever,
  • tenderness on the flanks (costo-vertebral angle tenderness, referring to tenderness upon tapping gently on the mid back on the sides), and
  • clinical evidence of infection in the urinalysis (laboratory analysis of urine).

In elderly patients and those with weak immune systems, kidney infection may be more severe with confusion, lethargy, rapid heart rate, low blood pressure, and dehydration. Continue Reading

Reviewed on 7/27/2015
References
REFERENCES:

Gupta, Kalpana, et al. "Urinary Tract Infection." Annals of Internal Medicine 156.5 (2012): ITC3-1.

NIH. Pyelonephritis: kidney infection. Updated Jun, 11 2012.

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