Neurogenic Bladder

Neurogenic Bladder

What is it?

Neurogenic bladder is a neurological condition in children where bladder function is impaired due to disorders of the central nervous system (brain and spinal cord). Such disorders are often congenital but may also arise from diseases affecting the nervous system later in life.

What are the causes?

Neurogenic bladder in children is most commonly caused by a condition called spina bifida. It arises when communication between the bladder and the brain is disrupted. While congenital defects are the primary cause, neurogenic bladder can also develop as a result of diseases and injuries affecting the nervous system.

Conditions and diseases that can lead to neurogenic bladder include:

  • Spina Bifida: a congenital spinal defect in which the spinal column does not close properly, damaging the nerves that control bladder function. A sac often forms on the child's back at birth and requires early neurosurgical repair.
  • Cerebral Palsy: a group of neurological disorders affecting movement and coordination; the nerves controlling the bladder can be impacted.
  • Infections: such as meningitis, which can damage the central nervous system and cause neurogenic bladder.
  • Traumas: injuries to the spine or brain—due to accidents or birth trauma—can impair bladder control.
  • Congenital Anomalies: structural abnormalities in the brain or spinal cord that disrupt nerve signals to the bladder.
  • Nervous System Diseases: certain rare childhood neurological diseases that affect bladder function.
  • Infantile Spinal Muscular Atrophy (SMA): a motor neuron disease that can interfere with bladder control.
  • Metabolic Disorders: some genetic or metabolic conditions that impair nervous system function and bladder control.
What problems do children with neurogenic bladder experience?

Children with neurogenic bladder may experience a range of urological issues due to impaired bladder control. These problems can affect them physically and psychologically, impacting daily life and overall quality of life.

Common problems encountered by children with neurogenic bladder include:

  • Urinary Incontinence: daytime and/or nighttime wetting can occur, leading to social and psychological difficulties.
  • Frequent Urination: they may feel the need to urinate more often than healthy peers, disrupting daily activities and causing discomfort at school or in social settings.
  • Difficulty Holding Urine: impaired bladder muscle function can make it hard to hold urine, leading to constant restroom visits or, in more severe cases, reliance on diapers or pads.
  • Incomplete Bladder Emptying: improper detrusor muscle contractions during voiding can leave residual urine in the bladder, increasing the risk of infections and potential kidney damage. In these cases, Clean Intermittent Catheterization (CIC) at regular intervals is recommended to fully empty the bladder.
  • Bladder Infections: frequent urinary tract infections are common.
  • Nocturnal Enuresis (Bedwetting): nighttime wetting can disrupt sleep patterns and negatively affect quality of life.
  • Abdominal Pain and Discomfort: bladder fullness or urgency can cause abdominal pain or discomfort.
  • Constipation and Fecal Incontinence: bowel control issues often coexist with bladder dysfunction, leading to constipation and involuntary stool leakage.
  • Vesicoureteral Reflux (VUR): backward flow of urine from the bladder to the kidneys can occur, especially if bladder pressure is elevated.
  • Long-term Health Risks: untreated neurogenic bladder can lead to serious complications over time, such as permanent kidney damage.
Which examinations and tests are needed for evaluation?

Evaluation of children with neurogenic bladder involves a series of tests to assess bladder and urinary system function. These tests are essential both for confirming the diagnosis and guiding treatment planning. The most commonly used investigations include:

  • Urodynamics: measures bladder pressure, volume, and urine flow to evaluate bladder function; pressure-flow studies are particularly valuable in neurogenic bladder.
  • Uroflowmetry / Voiding Test: assesses voiding phase by measuring flow rate, stream pattern, and voiding time when the child urinates into a specialized sensor-equipped toilet.
  • Ultrasonography (USG): structural assessment of the kidneys and bladder; helps detect hydronephrosis and anatomical changes.
  • Voiding Cystourethrography (VCUG): visualizes urinary tract anatomy and identifies vesicoureteral reflux (VUR).
  • Magnetic Resonance Imaging (MRI): detailed imaging of the spine to identify spinal anomalies that may underlie neurogenic bladder.
  • Nuclear Medicine Studies: such as DMSA or dynamic renal scintigraphy to assess kidney function and detect renal scarring.
  • Urinalysis and Culture: regular monitoring for urinary tract infections, which are common in neurogenic bladder.

These investigations are tailored to each patient’s needs, and the results guide the development of an optimal treatment plan.

What are the treatment options?

Children with neurogenic bladder require lifelong protective treatment beginning early. The approach is multimodal and individualized based on the child’s age, symptom severity, overall health, and family dynamics. After evaluation, a pediatric urologist may implement a combination of the following therapies. As bladder dysfunction progresses, surgical interventions may become necessary. The main goals of treatment are to prevent urinary tract infections, protect the upper urinary tract (kidneys and bladder), achieve bladder control to prevent incontinence, and ensure the best possible quality of life. Bowel issues must also be addressed alongside bladder dysfunction.

Common treatment modalities include:

  • Urotherapy Education (Healthy Bladder & Bowel Training): delivered by specialized physiotherapists, covering toileting posture, healthy diet and fluids, bowel habits, scheduled voiding, and bladder training techniques. Training content is tailored to each child’s needs. The primary goal is long-term protection of kidney function, with clear short- and long-term goals to keep the child and family engaged.
  • Medication Therapies: anticholinergics to relax bladder muscles and reduce overactivity, alpha-blockers to improve bladder neck relaxation, and prophylactic antibiotics to protect the kidneys in children with recurrent infections. Dosing and monitoring are managed by the pediatric urologist.
  • Pelvic Floor Muscle Rehabilitation: delivered by specialized physiotherapists, including massage techniques, diaphragmatic breathing exercises, biofeedback-assisted pelvic floor muscle training, stabilization exercises, and neuromodulation techniques to restore near-normal voiding and bowel function.
  • Clean Intermittent Catheterization (CIC): regular catheterization at scheduled intervals to fully empty the bladder, using age-appropriate catheter sizes. When performed correctly, CIC is a painless procedure that preserves kidney health and prevents serious complications. Educational materials are available for families.
  • Botulinum Toxin A (Botox): injected into the bladder muscle to reduce spasms and improve bladder control; used based on the pediatric urologist’s recommendation.
  • Bladder Augmentation Surgery: a surgical procedure to increase bladder capacity and improve compliance, considered when bladder capacity is inadequate or emptying is ineffective.
Can neurogenic bladder be completely cured?

Treatment of neurogenic bladder has two main goals. The first is to preserve kidney function and avoid the need for dialysis or transplantation; the second is to optimize bladder function and prevent incontinence so the patient does not face social challenges. Many children achieve these objectives with regular follow-up, but success requires continuous collaboration between healthcare providers and families and timely implementation of appropriate therapies. Ultimately, neurogenic bladder is a lifelong condition that requires ongoing management by pediatric urology specialists.