An Overview of Urinary Tract Infections in Toddlers

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A urinary tract infection (UTI) is an infection in any part of the urinary system, which includes the kidneys, ureters, bladder, and urethra. While you've probably heard of adults getting UTIs, children, including toddlers and infants, can also get them. UTIs don’t resolve on their own and need medical attention and prescription medication, but the good news is that most of the time, they’re pretty easy to treat. The most important thing is to get timely diagnosis and treatment, because if left untreated, UTIs can cause damage to the kidneys or lead to more serious infections.


UTIs are often caused by normal bacteria that are found in the bowel. While the urinary tract typically fights off any bacteria it comes into contact with, sometimes the bacteria cause an infection.

Toddlers are still learning good toilet habits, and so sometimes the bacteria travels because of diapers or poor wiping skills. It can also signal an issue in the urinary tract, and if you have a family history of UTIs, your toddler might be more prone to them, as well.

Signs and Symptoms

Signs and symptoms of a UTI in a toddler might look different than in adults, especially if they aren’t able to verbally express themselves yet. Sometimes there aren’t any symptoms, either, especially if your toddler is younger than 2 years old. Symptoms of UTIs in children can include:

  • Fever
  • Irritability/fussiness
  • Lack of appetite
  • Diarrhea or vomiting
  • If the toddler is potty trained, some urinary accidents
  • Frequent trips to the bathroom
  • Pain or burning with urination
  • Cloudy, dark, bloody, or bad-smelling urine
  • Lower back or belly pain

Girls are more prone to UTIs than boys because their urethra is closer to the anus, and thus closer to bacteria there. Boys who are not circumcised are also a bit more likely to get a UTI than boys who are circumcised.


If you suspect your toddler might have a UTI, take them to the pediatrician as soon as possible. Prompt diagnosis and treatment are important to avoid more serious infections.

When you go to the doctor, she will ask questions about your child’s medical history, what’s going on currently, present symptoms, and do a physical exam.

While all of that will be helpful, the only definitive way to tell if your toddler has a UTI is a urine culture. If your toddler isn’t potty trained, they will use a catheter to get a small amount of urine. This involves inserting a very thin tube into the urethra, up into the bladder.


The treatment for a UTI is antibiotics, which kill the bacteria causing the infection. If significant pain is involved, a medication that numbs the urinary tract lining may also be prescribed.

It’s important that your child takes the antibiotics for however long the doctor prescribes them for. While on the antibiotics, make sure your child is drinking lots of fluids, but try to avoid caffeine. After a few days or the course of medicine, your doctor might want to repeat the urinalysis to make sure the infection is, in fact, gone.

In severe cases of UTIs, or in infants younger than 6 months old, sometimes hospitalization is necessary. Hospitalization can ensure close monitoring and appropriate medication and treatment, especially if a child is dehydrated, a kidney infection is suspected, or the infection is thought to have spread.

For toddlers, changing diapers frequently can help reduce the risk of UTIs because it limits the spread of bacteria that can contribute to infections. If your child is potty trained, teach them proper hygiene, especially for girls (i.e., wiping front to back).

Wearing cotton underwear and avoiding bubble baths can also help reduce bacteria growth and irritation. It’s also important to let kids know not to “hold it in” when they have to urinate. When urine stays in the bladder for a long time, it creates an environment conducive to bacterial growth.

When to Call a Doctor

Call your doctor immediately if:

  • Your child has a fever with shaking chills
  • Your child has pain while urinating
  • Urine is bad-smelling or bloody
  • Your child has a fever of 101 degrees Fahrenheit or more

If you’ve given the course of antibiotics and your toddler is still symptomatic, call your doctor. She might want to retest the urine and do more tests to see if there’s an underlying medical issue causing the symptoms.

While UTIs can be painful, prompt diagnosis and treatment help to alleviate symptoms. Most times, after starting antibiotics, symptoms start to abate within two to three days. Most UTIs are cured within a week of starting treatment.

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