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Urinary Tract Infection (UTI)

Urinary Tract Infection (UTI)

Learn more about the Division of Urology

What is a urinary tract infection?

A urinary tract infection (UTI) is a common type of infection in children. About 1-2 percent of children are diagnosed with a UTI. Each year, we treat more than 800 patients who have urinary tract infections.

Causes of UTI

The urinary tract is made up of two main parts: the kidneys and the bladder, which together make and store urine. A UTI typically develops when there is abnormal bacterial growth in the urine. Depending on the site of infection –– bladder or kidney(s) –– how we manage and treat your child’s condition may vary.

Signs and symptoms of UTI

Cystitis is an infection in the bladder, or lower urinary tract. Symptoms include:

  • Burning feeling with urination
  • Needing to use the bathroom more often
  • Having wetting accidents
  • Pain in the lower part of the abdomen

Pyelonephritis is an infection in the kidneys, or upper urinary tract. This usually occurs when bacteria travel upward from the bladder. In infants and young children, the symptoms include:

  • High fever
  • Decreased appetite
  • Irritability
  • Vomiting

Older children may also have back or side pain.

Testing and diagnosis for UTI

If we suspect that your child has a UTI, we will ask for a urine test. The proper collection and evaluation of your child’s urine is key to an accurate diagnosis. A diagnosis cannot be made until the urine is tested. In infants or children who are not toilet trained, a catheter specimen is best.

Your child’s urine will be sent to a laboratory to see if any bacteria are growing. This is called a urine culture. It will take one to two days to get these results back. The urine culture will let us know what kind of bacteria is growing in your child’s urine, how much of that bacteria is growing, and what antibiotics will best treat your child’s infection.

Treatment for UTI

During your office visit, we will discuss which management approaches are needed for your child depending on the symptoms, the urine culture results and your child's age. If your child has recurrent bladder infections (cystitis), we will focus on improving their toilet habits to prevent future UTIs. Healthy toilet habits include emptying the bladder on a routine schedule, increasing water intake and monitoring bowel movements for signs of constipation.

In addition, we may refer your child to our DOVE Center for:

  • Uroflow — This measures the urine flow rate and the amount of time needed to empty the bladder, followed by an ultrasound (postvoid bladder scan) to check for leftover urine.
  • Biofeedback training — This teaches your child to relax their pelvic floor muscles so they can empty their bladder completely.
  • Behavior modification — This educates you and your child about the body and how it works. We will recommend strategies according to your child’s strengths for the best chance of success. Our psychologists may also discuss behavior management around toileting.

If your child has a kidney infection (pyelonephritis) we may request other imaging studies such as:

  • Renal and bladder ultrasound — A noninvasive test in which a transducer is passed over the kidney producing sound waves which bounce off the kidney and bladder, transmitting a picture on a video screen. The test is used to determine the size and shape of the kidney, and to detect a mass, kidney stone, cyst or other obstruction or abnormalities.
  • Voiding cystourethrogram (VCUG) — A specific X-ray that examines the urinary tract. A catheter (hollow tube) is placed in the urethra (tube that drains urine from the bladder to the outside of the body) and the bladder is filled with a liquid dye. X-ray images are taken as the bladder fills and empties. The images will show if there is any reverse flow of urine into the ureters and kidneys.

Results from these tests will inform our team of the best treatment option for your child.

Resources to help

Division of Urology Resources

Caring for a child with an illness or injury can be overwhelming. We have resources to help you find answers to your questions and feel confident in the care you are providing your child.

Reviewed on 02/01/2025

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