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Urinary tract infections (UTIs) in children are fairly common, but not usually serious. They can be effectively treated with antibiotics.
A UTI may be classed as either:
If you think your child is unwell and could have a UTI, contact your doctor as soon as possible.
Although UTIs aren't normally a serious type of infection, they should be diagnosed and treated quickly to reduce the risk of complications.
This topic covers:
It can be difficult to tell whether your child has a UTI, as the symptoms can be vague and young children can't easily communicate how they feel.
General signs that may suggest your child is unwell include:
More specific signs that your child may have a UTI include:
In most cases, your doctor can diagnose a UTI by asking about your child's symptoms, examining them, and arranging for a sample of their pee to be tested.
Treatment usually begins soon after a urine sample has been taken, and your child won't need any further tests.
In a few circumstances, further tests may be needed in hospital to check for abnormalities. Your doctor may refer you straight to hospital if your child is very young.
Read more about diagnosing UTIs in children .
Most UTIs in children are caused by bacteria from the digestive system entering the urethra.
There are many ways this can happen, including:
There's often no obvious reason why some children develop UTIs and others don't.
However, some children may be more vulnerable to UTIs because of a problem with emptying their bladder, such as:
Most childhood UTIs clear up within 24 to 48 hours of treatment with antibiotics and won't cause any long-term problems.
In many cases, treatment involves your child taking a course of antibiotic tablets at home.
As a precaution, babies under three months old and children with more severe symptoms are usually admitted to hospital for a few days to receive antibiotics directly into a vein (intravenous antibiotics).
Read more about treating UTIs in children .
It isn't possible to prevent all childhood UTIs, but there are some things you can do to reduce the risk of your child getting one.
The following advice may help:
Some people feel that drinking cranberry juice or taking cranberry supplements can help reduce their risk of UTIs.
However, recent high-quality research into these claims found little evidence to suggest cranberries have a significant impact on your chances of developing a UTI.
A small number of children have recurring UTIs. If your child's had a UTI before, it's important that both of you watch for the return of any associated symptoms.
Tell your doctor about any symptoms as soon as possible so a diagnosis can be confirmed and treatment can begin.
If your child has a problem that increases their risk of UTIs, such as faulty valves that allow urine to flow the wrong way, they may be prescribed low-dose antibiotics as a long-term measure to prevent further infections.
Urinary tract infections (UTIs) in children can usually be diagnosed by your doctor. They'll carry out a physical examination, ask about your child's symptoms, and request a urine sample.
You may be asked to collect the urine sample yourself, or a doctor or nurse at your doctor surgery may help you.
These tests help your doctor identify what's causing the infection and determine whether it's in the lower or upper part of the urinary tract.
If your child is less than three months old, your doctor may refer you straight to hospital to see a specialist in caring for children (paediatrician) without asking for a urine sample.
Collecting a urine sample from a child can sometimes be difficult, especially in babies and young children.
If you're not sure what to do or need some help collecting the urine sample, ask a doctor or nurse for advice.
In young children who are toilet trained, you'll usually be asked to collect a urine sample using a sterile bottle provided by your doctor's surgery.
Collect a sample by holding the bottle in the stream of urine while your child is urinating. Make sure nothing touches the open rim of the bottle, as this could affect the result.
Read about how to collect and store a urine sample.
If you're unable to collect a clean sample, it may be collected using a special absorbent pad that you put in your baby's nappy. A urine sample is then sucked out of the pad using a syringe.
If a urine sample is very difficult to collect at home or in a doctor's surgery, you may need to go to a hospital.
In such cases, a urine sample can be obtained by inserting a small plastic tube called a catheter into your child's urethra.
In most cases, treatment begins soon after a urine sample has been taken and your child won't need any further tests.
However, there are some circumstances where further tests may be carried out, including if:
In these cases, doctors may recommend carrying out some scans to look for any abnormalities.
There are many different scans that may be carried out to check for problems in your child's urinary tract, including:
The type of scans used and when they're carried out depends on your child's specific circumstances. In some cases, these scans may be carried out a few weeks or months after your child originally developed the infection.
Most urinary tract infections (UTIs) in children can be effectively treated with antibiotic medication.
This medication can often be given at home, although there are some situations where it may be necessary for your child to stay in hospital for a few days.
If your child is over three months old and not thought to be at risk of serious illness, they can usually be treated at home with antibiotics .
The recommended length of treatment depends on whether your child has:
Your child may experience some side effects while taking antibiotics, but these are usually mild and should pass once they stop taking the medication.
Common side effects of antibiotics include:
If necessary, paracetamol can also be used to treat any fever or discomfort your child has.
However, non-steroidal anti-inflammatory drugs (NSAIDs) – such as ibuprofen – shouldn't be used if your child has a UTI, as they can harm the kidneys. Aspirin should never be given to children under the age of 16.
If your child is unable to swallow tablets or capsules, they can be given antibiotics and paracetamol in liquid form.
Your child's condition will usually improve within 24 to 48 hours of treatment. However, it's very important they finish the whole prescribed course of antibiotics to prevent the infection recurring.
If your child is less than three months old or it's thought their condition could get worse, they'll be referred to hospital for treatment.
Doctors may feel your child is at risk of becoming more seriously ill without hospital treatment if:
In these cases, your child usually needs to stay in hospital for a few days to receive antibiotics directly into a vein (intravenous antibiotics). As with cases treated at home, your child should improve within 24 to 48 hours.
Most UTIs in children clear up within a day or two and won't cause any long-term problems. Go back to your doctor if your child isn't showing any signs of improvement by this point.
In many cases, your child won't need to be seen again once they've recovered. However, doctors may recommend carrying out some scans to check for any problems in your child's urinary tract that could have contributed to the infection.
Situations where further tests may be recommended include when:
Read our page on diagnosing UTIs in children for more information about the scans your child may have.
Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.