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A urinary tract infection (UTI) is a problem that happens when germs (called bacteria) get into the urinary tract and cause an infection.
Your child's urinary tract is the system that makes urine and carries it out of your child's body. It includes the bladder and the kidneys and the tubes that connect them. Most UTIs are bladder infections.
UTIs in children must be treated right away. A UTI that is not treated quickly can lead to a kidney infection.
Most UTIs in children are caused by germs (bacteria) that enter the urethra. The germs then travel up the urinary tract and cause infection. Germs that normally are in stool are the most common cause. Being constipated or not emptying the bladder all the way can lead to a buildup of bacteria.
Symptoms of a UTI in an infant or young child may include a fever. This may be the only symptom in infants. Other symptoms include being fussy or not being hungry. Older children are more likely to have symptoms, such as pain, the need to urinate often, or burning when urinating.
To diagnose a UTI, your doctor will test a sample of your child's urine to see if it has germs that cause infections. Your doctor will also ask about your child's symptoms and do a physical exam. Your child may need more testing to find the cause of the UTI.
Treatment for most children with a UTI is oral antibiotics and home care. Home care includes helping your child drink extra fluids when you notice symptoms and urging your child to urinate often. Children who are very young or sick may get a shot of antibiotics. Or your child may need treatment in a hospital.
Most UTIs in children are caused by germs (bacteria) that enter the urethra. The germs then travel up the urinary tract. Germs that normally live in the large intestine and are in stool (feces) are the most common cause of infection. Sometimes germs travel through the blood or lymph system to the urinary tract and can cause kidney or bladder infections.
The ways that a buildup of bacteria can occur include:
Sometimes a child's body can't get rid of all the urine. This can lead to UTIs in infants and young children. This may happen if a problem in the bladder allows urine to flow backward. Or it can happen if something blocks or slows the flow of urine.
Risk factors that increase your child's risk of getting a UTI include:
UTIs in children may not cause obvious urinary symptoms. Symptoms of a UTI in an infant or young child may include:
Older children are more likely to have symptoms such as:
In a UTI, bacteria usually enter the urinary tract through the urethra. They may then travel up the urinary tract and infect the bladder and the kidneys. Most UTIs in children clear up quickly with antibiotic treatment.
Infants and young children often get another UTI after their first UTI. If an infection comes back (recurs), it usually happens within the same year as the first UTI.
Recurrent UTIs in a child can mean that there is a problem with the structure or function of the urinary tract. Your child's doctor will treat any problems like this because repeated infections raise the risk of lasting kidney damage. In some cases, children may need surgery.
UTIs can lead to a serious infection throughout the body called sepsis. Problems from a UTI are more likely to happen in babies who are born too soon, in newborns, and in babies who have something blocking the flow of urine.
UTIs in infants and young children need early evaluation and treatment. Call your doctor to make an appointment within 24 hours if your child has:
Call the doctor if your child isn't feeling better within 48 hours after starting an antibiotic.
Watchful waiting is not the right choice if you suspect that your child has a urinary tract infection. Untreated UTIs in children can lead to other kidney problems, high blood pressure, and other complications.
To diagnose a UTI, your doctor will ask for a sample of your child's urine. It's tested to see if it has germs that cause bladder infections. Your doctor will also ask about your child's health and do a physical exam.
If your doctor thinks your child has a UTI, the doctor may have your child start taking antibiotics right away before getting the results of the test.
Your doctor may do other tests if your child has a UTI and:
Treatment for most children with a UTI is oral antibiotics and home care. Home care includes helping your child drink extra fluids as soon as you notice symptoms. And it includes urging your child to urinate often.
Infants and young children with a UTI need early treatment. This is to prevent kidney damage or widespread infection (sepsis). Your doctor is likely to start treating your child based on the symptoms and urine test.
Sometimes the doctor may give your child a shot of antibiotics. This can happen if your child is younger than 3 months, is too nauseated or sick to take oral medicines, or has an impaired immune system. Or your child may need antibiotics given through a vein (I.V.). This is given in a hospital. After your child's fever and other symptoms improve and your child is feeling better, the doctor may give your child oral antibiotics.
Antibiotic medicine that your child takes by mouth (an oral medicine) usually works well to treat UTIs. In many cases, if the symptoms and a urine test suggest a UTI, the doctor will start the medicine without waiting for the results of a urine culture.
The doctor may give antibiotics as a shot or through a vein (I.V.) if your child is:
The doctor may start oral medicine treatment after your child is stable and feels better.
The doctor may consider antibiotics to prevent another infection if tests show a problem in the urinary tract that raises the child's risk for recurrent UTIs.
Treatment to prevent UTIs may last 3 months or longer. Some doctors are more careful about giving antibiotics for long-term use. This is because of concerns about the growth of antibiotic-resistant bacteria.
Current as of: March 1, 2023
Author: Healthwise StaffClinical Review Board: John Pope MD - PediatricsE. Gregory Thompson MD - Internal MedicineAdam Husney MD - Family MedicineSusan C. Kim MD - Pediatrics
Current as of: March 1, 2023
Author: Healthwise Staff
Medical Review:John Pope MD - Pediatrics & E. Gregory Thompson MD - Internal Medicine & Adam Husney MD - Family Medicine & Susan C. Kim MD - Pediatrics
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