Signs and symptoms of a kidney infection may include:

  • Fever
  • Back, side (flank) or groin pain
  • Abdominal pain
  • Frequent urination
  • Strong, persistent urge to urinate
  • Burning sensation or pain when urinating
  • Pus or blood in your urine (hematuria)

When to see a doctor

Make an appointment with your doctor if you have any signs or symptoms that worry you. Also make an appointment if you're being treated for a urinary tract infection, but your signs and symptoms aren't improving.

Severe kidney infection can lead to life-threatening complications. Seek immediate medical attention if you experience typical kidney infection symptoms combined with bloody urine or nausea and vomiting.

Aug. 09, 2011