Pyelonephritis in Children

Pyelonephritis in Children

Pyelonephritis is a kidney infection. The kidneys are organs that help clean the blood by moving waste out of the blood and into the pee (urine). In most cases, this infection clears up with treatment and does not cause other problems.

Follow these instructions at home:


  • Give over-the-counter and prescription medicines only as told by your child’s doctor. Do not give your child aspirin.
  • Give antibiotic medicine as told by your child’s doctor. Do not stop giving your child the antibiotic even if he or she starts to feel better.

General instructions

  • Have your child drink enough fluid to keep his or her pee clear or pale yellow. Try water, sport drinks, cranberry juice, and other juices.
  • Have your child avoid caffeine, tea, and bubbly drinks.
  • Urge your child to pee (urinate) often. Tell your child not to hold his or her pee for a long time.
  • After pooping (having a bowel movement), girls should wipe from front to back. Use each tissue only once.
  • Keep all follow-up visits as told by your child’s doctor. This is important.

Contact a doctor if:

  • Your child does not feel better after 2 days.
  • Your child gets worse.
  • Your child has a fever.

Get help right away if:

  • Your child who is younger than 3 months has a temperature of 100°F (38°C) or higher.
  • Your child feels sick to his or her stomach (nauseous).
  • Your child throws up (vomits).
  • Your child cannot take his or her medicine or cannot drink fluids as told.
  • Your child has chills and shaking.
  • Your child has very bad pain in his or her side (flank) or back.
  • Your child feels very weak.
  • Your child passes out (faints).
  • Your child is not acting the same way he or she normally does.

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