Skip to content
knowrare
HealthSignal
Your condition community

Living with X-linked intellectual disability, van Esch type

A rare X-linked condition with learning difficulty, low birth weight, short stature, small head, and low sex hormone levels.

Understanding X-linked intellectual disability, van Esch type

X-linked intellectual disability, van Esch type, is a rare condition with developmental delay, mild to moderate intellectual disability, and short stature.

People may have low birth weight, a small head, and low sex hormone production (hypogonadism) that varies. Facial features are mild and include upslanted eye openings and a prominent nasal bridge. Signs begin in the newborn period or infancy.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Mild intellectual disability
  • Short stature
  • Small head size (microcephaly)
  • Low sex hormone production (hypogonadism)
  • Slow growth before birth
  • Attention problems

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, genetic specialists, hormone specialists and urinary and male reproductive system specialists.

  3. Consider genetic testing

    Changes in POLA1 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    Resolve: The National Infertility Association may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists); Hormone specialists (endocrinologists); Urinary and male reproductive system specialists (urologists)
Expert care
Expert lists: Resolve: The National Infertility 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 Resolve: The National Infertility 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
Could POLA1 genetic testing help our family?
How are hormones and growth monitored?
Which specialists should be on my child's care team?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceX-Linked
GenesPOLA1

X-linked intellectual disability, van Esch type, is caused by changes in the POLA1 gene and follows X-linked inheritance.

GeneticNeurologicalEndocrine

Also known as: mental retardation, x-linked, syndromic, van esch-o''driscoll type; van esch-o'driscoll syndrome; van esch-o'driscoll syndrome, x-linked recessive; veods; x-linked intellectual disability van esch type

Patient organizations

Broader rare-disease groups

Source: NIH GARD · X-linked intellectual disability, van Esch typeGARD ID 17008 · 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 X-linked intellectual disability, van Esch type.

Explore the X-linked intellectual disability, van Esch type blog

Explore research for X-linked intellectual disability, van Esch type

Explore actively recruiting X-linked intellectual disability, van Esch type studies with HealthSpark.

HealthSpark

Find actively recruiting studies for X-linked intellectual disability, van Esch type 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

Powered by HealthSpark, our AI chat helper

I can help you find recruiting X-linked intellectual disability, van Esch type studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

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

Get Signals for X-linked intellectual disability, van Esch type

Stay in the loop with community stories and updates from medical researchers.

HealthStoryfor X-linked intellectual disability, van Esch type

Create a living journal that talks back

HealthStory evolves private journaling with a living AI journal that talks back and asks thoughtful questions, helping you capture your X-linked intellectual disability, van Esch type experiences more deeply and prepare for better conversations with your doctors and care team.

Start your journal

Your journal is private. Sharing your story publicly is a separate choice, made with Share your story above.