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Kidney infection

Information from the Medical Directory health library.

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This information supports, and does not replace, advice from your healthcare professional.

Overview

Kidney infection (pyelonephritis) is a bacterial infection affecting one or both kidneys, often requiring prompt treatment to prevent complications.

Symptoms

Fever and chills Flank or back pain Frequent, painful urination Nausea and vomiting Fatigue

Causes

Bacteria from urinary tract infection spreading to kidneys Blockages in the urinary tract (stones, enlarged prostate) Weakened immune system

Diagnosis

Urine tests for infection Blood tests to assess kidney function Imaging like ultrasound or CT scan in severe cases

Treatment

Antibiotics Hydration and rest Hospitalization if severe or complicated Treatment of underlying causes

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