A UTI (Urinary Tract Infection) is an infection of the bladder or kidneys. It is caused by bacteria and is treated with antibiotics. Bladder infections are far more common than kidney infections; kidney infections are more serious and may need treatment with antibiotics through a drip in their vein
Your child is more likely to get a UTI if they are under 1 year old, a girl, or have problems with their urinary tract. About 8 in every 100 girls and 2 in every 100 boys will have had a urinary tract infection by the time they are 7 years old.
What are the symptoms?
It can be difficult to tell when a child has a UTI, especially if they are very young. The symptoms can vary depending on your child's age and the severity of the infection. Features suggesting a bladder infection include:
Pain or stinging when passing urine
Passing urine more often than normal
Crying when passing urine
Refusing to pass urine
If the following features are also present, your child might have a kidney infection:
Fever
Vomiting
Back or tummy pain
When should you worry?
If your child has any of the following features:
Becomes pale, mottled and feels extremely cold to touch
Becomes extremely agitated (crying inconsolably despite distraction), confused or very lethargic (difficult to wake)
Has blue lips or pauses in their breathing (apnoeas) or has an irregular breathing pattern
Develops a rash that does not disappear with pressure (see the 'Glass Test')
Is under 1 month of age with a temperature of 38°C / 100.4°F or above
You need urgent help.
Go to the nearest Hospital Emergency (A&E) Department or phone 999
If your child has any of the following features:
Is struggling to take their antibiotics or not keeping them down due to vomiting
Seems dehydrated (sunken eyes, drowsy or no urine passed for 12 hours)
Starts to complain of pain in the back
Starts getting uncontrollable shakes (rigors)
Seems to be getting worse despite being on antibiotics for more than 2 days
Is between 1-3 months of age with a temperature of 38°C / 100°F or above; or 3-6 months of age with a temperature of 39°C / 102.2°F or above (but fever is common in babies up to 2 days after they receive vaccinations).
Continues to have a fever of 38.0°C or above for more than 5 days
You need to contact a doctor or nurse today.
Please ring your GP surgery or contact NHS 111 - dial 111 or for children aged 5 years and above visit 111.nhs.uk
None of the features above
Self care
Continue providing your child’s care at home. If you are still concerned about your child, contact NHS 111 – dial 111 or for children aged 5 years and above visit 111.nhs.uk
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This guidance was last reviewed 20/12/2024.
Ensure they get antibiotics at regular intervals as instructed by your doctor
It is important to make sure your child takes the antibiotics for as long as the doctor recommends. Otherwise, there is a chance that their infection won't be fully treated and your child might get ill again
Children with UTIs may be uncomfortable so you may wish to give them paracetamol or ibuprofen to help with their pain
A UTI is diagnosed by testing a sample of your child's urine (pee). This sample needs to be 'caught' in a sterile pot. The sample will usually be tested immediately (dipstick) and may also be sent to the hospital for further testing.
It will take a couple of days to get the results back - your child's antibiotics may be stopped or changed at that point.
If your child is under 6 months of age, they will need kidney scans soon after their UTI. This will be organised by their doctor. Older children with frequent UTIs may also need a scan of their kidneys. This will look to see if there is a structural problem that explains why your child is more likely to get UTIs and whether the infection has caused any damage to the kidney.
Your child will need antibiotics to treat their UTI. Most children with a bladder infection can be managed with oral antibiotics.
If your child has a kidney infection or if they are very young (under 3 months of age), they may need to go to hospital for antibiotics through a drip in their vein.
Ensure your child drinks plenty of water - aim for 6-8 glasses daily
Ensure your child goes to the toilet regularly - aim for every 2-3 hours, including at school
Treat constipation - see your GP
Encourage girls to wipe their bottom from front to back
Use loose-fitting cotton underwear
Avoid bubble bath and excessive soap in the bath
Next time your child has a fever for no obvious reason, especially if nobody else is unwell in the family, make sure a urine sample is checked. If your child has a UTI, it is important that it is diagnosed and treated early. That way, there is far less chance that it will cause long term damage to their kidneys
