Pyelonephritis (kidney infection) is a type of urinary tract infection (UTI) that generally begins in the urethra or bladder and travels to one or both of your kidneys. You are more likely to get a kidney infection if you have frequent bladder infections or have a structural problem in the urinary tract.

A kidney infection requires prompt medical attention. If not treated properly, a kidney infection can permanently damage kidneys or the bacteria can spread to the bloodstream and cause a life-threatening infection.
  • Symptoms
  • Fever

    • With chills

    • Less than 38°C (100. 4°F), Greater than or equal to 38°C (100.4°F)


    Abdominal pain

    • Steady

    • Flank pain, Lower


    Throwing up

    or Feel like vomiting


    Sore abdomen

    • Middle sides of the abdomen


    Blood in urine


    Pain discomfort or burning when urinating

    or Frequent urination

    or Urgent feeling to pee


    Poor appetite

  • Risk factors
  • Recent sex

    Infection in any part of urinary system

  • Treatment
  • Outpatient oral antibiotic therapy with fluoroquinolone is successful in most patients with mild uncomplicated pyelonephritis. Other effective alternatives include extended-spectrum penicillins, amoxicillin-clavulanate potassium, cephalosporins, and trimethoprim-sulfamethoxazole.
  • Recommended specialist
  • If you have Pyelonephritis, then a visit to a general internist is recommended.

    Contact a

    General internist

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