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Living with Posterior meningocele

A birth difference of the spine in which a sac of spinal fluid pushes out through a gap in the back bones, usually without harming nerves.

Understanding Posterior meningocele

Posterior meningocele is a rare neural tube defect in which a sac filled with spinal fluid pushes out through a gap in the back of the spine bones.

The sac is covered by skin, which may be thin, abnormal or sore. The spinal cord and nerves are generally not in the sac and work normally. A tethered cord sometimes occurs. It most commonly occurs in the lower back or tailbone area. It is present from birth or infancy.

Signs & symptoms

Symptoms vary from person to person. GARD lists these:

  • A sac of spinal fluid at the back of the spine
  • Neural tube defect (spina bifida)
  • Brisk reflexes
  • Trouble walking (less common)
  • Bladder control problems (less common)
  • Chiari malformation (less common)

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists and genetic specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Spina Bifida Association may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: Spina Bifida Association
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Spina Bifida Association
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Is surgery recommended, and when?
Could a tethered cord be present, and how is it checked?
What follow-up is needed for walking and bladder function?

Quick facts

Symptoms usually startNewborn and as an Infant

GARD says changes in genes cause this condition but doesn't name a gene or describe an inheritance pattern.

GeneticNeurological

Patient organizations

Source: NIH GARD · Posterior meningoceleGARD ID 20965 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Posterior meningocele.

Explore the Posterior meningocele blog

Explore research for Posterior meningocele

Explore actively recruiting Posterior meningocele studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Posterior meningocele with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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