urine in children

Overview

This guide explains what urine is, how children’s kidneys and urinary system work, and common problems that can affect urination in children. It covers signs to watch for and when to seek medical help.

Yes. Many children experience urinary issues such as bedwetting, urinary tract infections, or changes in urine color at some point. Most are minor and treatable.

Children of all ages, from babies to teenagers. Some conditions, like urinary tract infections, are more common in girls.

Symptoms

Common symptoms

• Pain or burning when urinating
• Needing to urinate more often than usual
• Cloudy, dark, or bloody urine
• Foul-smelling urine

Symptoms in children

• Bedwetting after being toilet trained
• Holding urine or avoiding the bathroom
• Signs of pain when urinating (crying or fidgeting)
• Leaking urine during the day

Symptoms in older adults

• This topic focuses on children; symptoms in older adults can be different, and this guide does not cover them.

Causes

Main causes

• Urinary tract infection (UTI) – an infection in the bladder or kidneys
• Holding urine for too long, which can weaken the bladder
• Constipation pressing on the bladder
• Anatomical problems in the urinary system (present from birth)

Risk factors

• Being female (girls have a shorter urethra, making infections more likely)
• Being aged 2-6 during toilet training
• Not drinking enough water
• A family history of bedwetting or urinary problems

When to see a doctor

See a doctor urgently if:

• Any symptom listed under emergency or urgent, such as pain, fever, or inability to urinate
• Wetting again after being dry for more than six months
• Swelling in the face or legs, which can be a sign of kidney problems

Book a routine appointment if:

• Ongoing bedwetting after age 6
• Toilet-trained child who suddenly starts having accidents
• Parents concerned about their child’s urine color or smell that lasts more than 2 days

Diagnosis

A doctor will ask about your child’s symptoms, do a physical exam, and may test a urine sample. For some conditions, imaging tests look at the kidneys and bladder.

Tests that may be done

• Urine dipstick test – a quick test that checks for signs of infection, blood, or sugar
• Urine culture – a test that grows bacteria to confirm a urinary tract infection
• Ultrasound of the kidneys and bladder – a painless scan that checks structure and function

What to expect at your appointment

Urine tests are simple and painless. Your child may be asked to pee into a cup. For babies, a small bag can collect urine. The doctor will explain the results and recommend next steps.

Treatment

Treatment depends on the cause of the problem. For infections, the doctor usually prescribes medicine to clear the infection. For bedwetting, treatment often starts with lifestyle changes and may include special alarms or other approaches. Never give medicines without a doctor’s advice.

Self-care at home

• Encourage your child to drink plenty of water throughout the day
• Make sure your child uses the bathroom when they feel the urge – don’t hold it
• Wipe from front to back for girls to help prevent infections
• Avoid bubble baths or harsh soaps that can irritate the urethra

Medical treatments

Medicines may be used to treat a confirmed infection, to calm an overactive bladder, or to reduce bedwetting. These should only be given under the guidance of a healthcare provider. Special alarms can also help a child wake up when they need to pee.

When is surgery considered?

In rare cases, surgery is needed to fix anatomical problems such as blockages or reflux of urine from the bladder to the kidneys. This is only recommended when other treatments have not worked.

Living with this condition

Help your child keep a regular bathroom schedule, offer drinks at set times, and watch for any signs of infection. Be patient and supportive – most urinary issues in children improve with time.

Lifestyle tips

• Set a bathroom routine – wake your child to pee at a regular time if needed
• Limit caffeine drinks (like tea, coffee, or cola) that can irritate the bladder
• Use waterproof mattress covers to make bedwetting easier to manage

Diet and exercise

A balanced diet with plenty of fruits, vegetables, and whole grains helps keep the digestive system regular and reduces constipation, which can affect the bladder. Encourage physical activity and healthy hydration.

Mental health and emotional wellbeing

Urinary problems like bedwetting can cause embarrassment or stress for a child. It is important to stay calm, avoid blame, and reassure your child that they are not alone. Talk to your doctor if you notice signs of low confidence or anxiety.

Prevention

Many urinary problems can be prevented with healthy habits like good hydration, frequent bathroom breaks, and proper hygiene. Some problems, like bedwetting, cannot always be prevented.

Complications

If left untreated

• A urinary tract infection that spreads to the kidneys can cause serious illness
• Kidney damage if infections are repeated or if a blockage is not treated
• Chronic constipation causing ongoing bladder problems

Long-term outlook

With proper care, the vast majority of urinary problems in children improve or resolve completely. Even conditions like bedwetting usually go away with time and the right support. A healthcare provider can help you manage any concerns.

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