15075 Bedwetting

Overview

Bedwetting, also called nocturnal enuresis, is the unintentional passing of urine during sleep. It is usually a normal part of a child's development, but it can also happen to teenagers and adults.

Bedwetting is very common in young children. About 1 in 6 five-year-olds wet the bed at least sometimes, and the number falls as children get older.

It most often affects children under 7 years old, but it can continue into the teens or appear for the first time in adults. It is more common in boys than in girls.

Symptoms

Common symptoms

• Waking up with wet underwear or sheets
• Needing to change clothes or bedding in the morning
• Wetting during night sleep without feeling the urge to go

Symptoms in children

• Primary bedwetting – the child has never had a long dry spell
• Secondary bedwetting – the child starts wetting the bed again after being dry for 6 months or more
• Wetting only at night rather than during the day

Symptoms in older adults

• Sudden, new bedwetting that was not present before
• Waking up wet in the morning without remembering or feeling the urge
• Bedwetting combined with painful urination, fever, or back ache

Causes

Main causes

• The body may make too much urine at night, or the bladder may not yet hold much urine while sleeping
• Delayed development of the brain's ability to sense a full bladder during sleep
• Constipation can press on the bladder and trigger wetting
• Urinary tract infection
• Diabetes, sometimes first noticed as increased urination and thirst

Risk factors

• Family history of bedwetting
• Difficulty waking from deep sleep
• Attention-deficit/hyperactivity disorder (ADHD)
• Being very constipated or having chronic diarrhoea
• Stress at home or school

When to see a doctor

See a doctor urgently if:

• Sudden bedwetting after being dry for 6 months or more
• Pain, burning, or blood when urinating
• Bedwetting with fever, abdominal pain, or vomiting

Book a routine appointment if:

• A child is 7 or older and still wets the bed regularly
• An adult starts bedwetting
• Bedwetting is affecting a child's self-esteem or school life
• You have concerns about toilet training or bladder habits

Diagnosis

Your doctor will ask about when bedwetting happens, how much fluid your child drinks, toilet habits, and any other symptoms. They may feel the tummy and ask for a urine sample.

Tests that may be done

• Urine dipstick test – a quick test for signs of infection or sugar in the urine
• Bladder ultrasound – a sound-wave scan to see if the bladder empties fully
• Sometimes blood tests if diabetes or other hormonal issues are suspected

What to expect at your appointment

The doctor will reassure you that bedwetting is usually not serious. They may give you a bladder diary to fill in at home, tracking drinks, toilet visits, and wet and dry nights. For most children, no further tests are needed.

Treatment

Treatment focuses on behaviour first, then devices and sometimes medicines, depending on the age and cause. Most children do well with consistent support and time.

Self-care at home

• Set a regular 'final call' for the toilet, about 30 minutes before bed
• Encourage your child to drink plenty in the morning and early afternoon, but less in the evening
• Avoid drinks with caffeine, like cola, tea or coffee, after lunch
• Use waterproof mattress covers and keep dry pyjamas beside the bed
• Reward dry nights, not punish wet ones – praise for trying is enough

Medical treatments

If behaviour changes and a bedwetting alarm do not work, your doctor may prescribe a medication that acts like a natural hormone to reduce nighttime urine production, or a medication that relaxes the bladder. These are used only with a doctor's advice and are usually stopped after a few months. For older adults, treating the underlying cause – such as infection, diabetes, or prostate issues – is the first priority.

When is surgery considered?

Surgery is rarely needed for bedwetting. It is only considered if there is a clear structural problem, like a blockage or a bladder abnormality, that has been found on tests.

Living with this condition

Bedwetting is nobody's fault. Involve the child in practical ways without giving them shame: let them help strip the bed and put in a dry sheet, use a nightlight, and make the route to the bathroom clear.

Lifestyle tips

• Put your child to bed dry, not exhausted – have a short calm wind-down routine
• Encourage regular daytime toilet visits, about every 2 hours
• If constipation is an issue, treat it first with fibre-rich foods and plenty of fluids
• Have a consistent sleep schedule and avoid very late nights

Diet and exercise

A balanced diet rich in vegetables, fruit and whole grains helps prevent constipation. Regular exercise improves sleep quality and general bladder health, and losing excess weight can reduce the chances of sleep apnoea linked to bedwetting.

Mental health and emotional wellbeing

Bedwetting can make children feel embarrassed, guilty or anxious. It helps to talk openly, use humour kindly, and remind them it is common and will get better. If your child is feeling low or withdrawn, consider speaking to a school nurse or counsellor.

Prevention

Not completely, but you can reduce the chance of wet nights by keeping your child regular with toilet visits, reducing constipation, limiting fluids in the evening, and making the toilet easy to find in the night.

Vaccines

There is no vaccine for bedwetting.

Screening programmes

No routine screening test for bedwetting is needed; your doctor will only test if symptoms suggest an underlying condition.

Complications

If left untreated

• Emotional distress such as low self-esteem, embarrassment, or anxiety
• Skin irritation or soreness in the groin area
• Increased risk of urinary tract infections, especially if the bladder is not emptying fully

Long-term outlook

The outlook is generally very good. Most children outgrow bedwetting over time, and for those who do not, a combination of lifestyle changes, alarms and medical help leads to a complete or significant improvement.

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