About Nocturnal Enuresis (Bed-Wetting or Nighttime Incontinence)

Overview

Nocturnal enuresis, or bed-wetting, is when a child involuntarily urinates during sleep after the age when bladder control is typically expected. It can be monosymptomatic (MNE), occurring without other urinary issues, or non-monosymptomatic (NMNE), involving additional bladder symptoms. While it becomes less common with age, it may persist into adolescence or adulthood.

Possible causes include genetics, small bladder capacity, increased nighttime urine production, or deep sleep patterns. This condition can affect a child's quality of life and cause emotional stress for both the child and their family.

Causes and Risk Factors

Nocturnal enuresis (NE), or bedwetting, can have various root causes and risk factors:

Root causes of NE:

  • Low Bladder Capacity: A bladder too small to hold urine through the night.
  • Insufficient Antidiuretic Hormone (ADH) Production: Low ADH levels at night can lead to increased urine production.
  • Genetic Factors: Family history of bed-wetting increases the likelihood in children.
  • Upper Airway Obstructions: Conditions like sleep apnea can contribute to bed-wetting.
  • Structural Problems: Issues in the urinary tract or nervous system can affect bladder control.
  • Developmental Delays: Slower development of bladder control skills.
  • Diabetes Insipidus: A condition causing excessive urine production.
  • Urinary Tract Infections (UTIs): Can irritate the bladder and cause bed-wetting.
  • Stressful Circumstances: Stress at school or home may trigger or worsen bed-wetting.

Non-modifiable risk factors of NE are factors that cannot be changed. These are:

  • Neuropsychiatric Problems: Conditions like intellectual disabilities, ADHD, or psychological disorders can affect bladder control and contribute to bed-wetting.
  • Age: Younger children are more likely to experience nocturnal enuresis, as bladder control develops with age. The condition often decreases as children grow older.

Modifiable risk factors of NE are factors that can be influenced or changed. These are:

  • Poor Flow and Urinary Leakage: Weak urine flow and leakage may indicate underlying issues with bladder function.
  • Neurogenic and Bladder Dysfunctions: Conditions like overactive or underactive bladder muscles can disrupt normal bladder control.
  • Frequent and Urgent Urination: Persistent urgency and increased bladder sensitivity can exacerbate bed-wetting or urinary issues.

It's important to note that these risk factors are associated with NE but may not be the sole cause. It's always recommended to consult a healthcare professional for a proper evaluation and personalized advice.

Symptoms

The most common early symptom of Nocturnal Enuresis (NE) is bedwetting during sleep. However, as NE progresses or becomes more severe, other symptoms may occur. These include:

  • Restless sleep: Some individuals with NE may experience restless sleep, which can be characterized by tossing and turning throughout the night.
  • Nocturnal sweating: Night sweats, particularly in the neck and upper body area, can be a diagnostic factor of NE. It has been found that about 50% of children with NE experience nocturnal sweating.
  • Snoring: Snoring is another common symptom that may occur with NE, especially in individuals with obstructive sleep apnea. It is important to note that snoring can also be a separate condition.
  • Daytime sleepiness: As NE progresses, individuals may experience daytime sleepiness due to disrupted sleep patterns during the night.

It is worth mentioning that these symptoms may vary from person to person, and not all individuals with NE will experience the same symptoms. If you or someone you know is experiencing these symptoms, it is advisable to consult a healthcare professional for an accurate diagnosis and appropriate management strategies.

Diagnosis

To diagnose Nocturnal Enuresis, doctors commonly perform the following examinations, tests, and procedures:

  • Medical history: The doctor will ask about the child's age, history of bedwetting, and any additional symptoms.
  • Physical examination: The doctor will conduct a physical examination to check for any underlying conditions.
  • Urinalysis: A test of the child's urine to look for signs of a urinary tract infection or diabetes.
  • Additional tests: If symptoms suggest a urinary tract infection, diabetes, or other problems, additional tests may be needed.

To determine the stage or severity of Nocturnal Enuresis, doctors may use the following examinations, tests, and procedures:

  • Dry night diary: The child keeps a record of bedwetting frequency over 14 consecutive days.
  • Night-voided volume measurement: The child sleeps wearing a diaper to measure the voided volume during sleep.
  • Nocturnal diuresis calculation: Add the weight of the diaper, the amount of urine passed during the first morning urination, and any additional urine from nighttime waking to determine total urine output overnight.
  • Bladder Capacity Evaluation: Bladder size is estimated using age-based formulas or direct measurement techniques.
  • Behavioral Factors Assessment: Examines how behavioral patterns or issues relate to the severity of bed-wetting.

Remember that these are general procedures used in diagnosing and assessing Nocturnal Enuresis. Your doctor will determine which tests are necessary based on your child's specific condition.

Treatment Options

The goals of treatment for Nocturnal Enuresis (NE) are to reduce or eliminate bedwetting episodes and improve the quality of life for those affected.

Medication types:

  • Desmopressin: Desmopressin is a synthetic hormone that helps reduce urine production during sleep. It works by increasing water reabsorption in the kidneys, leading to less urine production at night.

Therapies:

  • Behavioral Therapy: Focuses on bladder training with methods like scheduled bathroom trips, moisture alarms to detect bed-wetting, and rewards for progress.
  • Combination Therapy: Using desmopressin with anticholinergic medications can improve treatment success compared to desmopressin alone.

Therapeutic Procedures:

  • Urotherapy: Educates children on healthy bladder habits, such as reducing fluids before bed and regularly emptying the bladder during the day.
  • Bladder Retraining: Gradually increases bladder capacity to improve control over urination.

Health Behavior Changes

  • Limiting Dairy Intake: Reducing dairy can lower urine concentration, especially in cases resistant to desmopressin.
  • Regular Bowel Habits: Treating constipation and irregular bowel movements can help manage bed-wetting effectively.

Other treatments:

  • Bedwetting alarms: These devices sense moisture and sound an alarm to wake the child when they start to wet the bed. Over time, this can help train the child to recognize the need to empty their bladder during sleep.

It's important to note that medication dosing and treatment recommendations should be discussed with a healthcare professional. Medication dosing may be affected by many factors.

Check with your health care professional about dosing for your individual situation. Other side effects can occur. Check with your health care professional or read the information provided with your medication for additional side effect information.