Urinary Tract Infections in Childhood

(UTI in Childhood)


The urinary tract carries urine from the kidneys to the outside of the body. It includes the kidneys, bladder, and tubes that connect them. The tubes from the kidney to bladder are called ureters. The tube from the bladder to the outside of the body is called the urethra. A urinary tract infection (UTI) is an infection in any of these structures.
The Urinary Tract
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UTIs are caused by bacteria. The bacteria may enter the bladder or the kidneys.

Risk Factors

Factors that may increase your child's chance of a urinary tract infection include:
  • Abnormalities of the urinary tract, including:
    • Vesicoureteral reflux—urine flows backwards from the bladder up into the kidneys
    • Urinary obstruction—something is blocking or slowing the flow of urine
  • Holding urine for long periods of time
  • Not fully emptying the bladder
  • Poor hygiene and toilet habits
  • Clothing that is too tight, especially if it is not cotton
  • Family history of UTIs
  • Uncircumcised penis


Symptoms include:
  • Feeling the need to urinate frequently
  • Only producing a small amount of urine
  • Burning or painful urination
  • Fever
  • Diarrhea
  • Irritability
  • Fatigue
  • Stomachache
  • Foul-smelling urine
  • Blood in the urine
  • Potty-trained children wetting themselves


The doctor will ask about your child's symptoms and medical history. A physical exam will be done. The doctor may also ask for a urine sample. Follow the doctor's directions on collecting your child's urine.Your child's bodily fluids may need to be tested. This can be done with:
  • Urinalysis—a laboratory examination of a urine sample
  • Urine culture —to identify the specific bacteria that is involved
  • Complete blood count and other blood tests if your child has a fever
Imaging tests may be ordered if your child is a boy with a UTI or a girl after her second UTI. These infections may be associated with problems in the urinary tract. The test may include ultrasound or specialized scans and x-rays.

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