Skip to content
knowrare
HealthSignal
Your condition community

Living with Intellectual disability, X-linked, with or without seizures, ARX-related

A rare X-linked genetic condition (ARX-related) with learning and developmental delays and sometimes seizures.

Understanding Intellectual disability, X-linked, with or without seizures, ARX-related

Intellectual disability, X-linked, with or without seizures, ARX-related is a rare genetic disease that affects the brain and nervous system.

It can cause delays in learning and development, and some people have seizures. Signs usually begin in infancy or early childhood. Many people have severe intellectual disability that stays about the same over time. Males and females can have it, but females often have milder symptoms or none.

Signs & symptoms

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

  • Intellectual disability, often severe
  • Flat feet
  • Loss of bladder control
  • Differences in the testes (dysplastic testis)
  • Seizures (less common)
  • Low muscle tone (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

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

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

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Ask about multidisciplinary care centers for rare conditions
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 Simons Searchlight
  • 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
Can genetic testing for the ARX gene confirm the diagnosis?
Is my child at risk for seizures?
What does X-linked inheritance mean for female relatives?

Quick facts

InheritanceX-Linked

Changes in the ARX gene are linked to this condition, which is inherited in an X-linked pattern, meaning the gene is on the X chromosome.

Also known as: arx-related intellectual disability; intellectual developmental disorder, x-linked 29; intellectual developmental disorder, x-linked 29, x-linked recessive

Patient organizations

  • Simons SearchlightIntellectual disability, X-linked, with or without seizures, ARX-related · United States
Source: NIH GARD · Intellectual disability, X-linked, with or without seizures, ARX-relatedGARD ID 5614 · 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 Intellectual disability, X-linked, with or without seizures, ARX-related.

Explore the Intellectual disability, X-linked, with or without seizures, ARX-related blog

Explore research for Intellectual disability, X-linked, with or without seizures, ARX-related

Explore actively recruiting Intellectual disability, X-linked, with or without seizures, ARX-related studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Intellectual disability, X-linked, with or without seizures, ARX-related 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 Intellectual disability, X-linked, with or without seizures, ARX-related 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 Intellectual disability, X-linked, with or without seizures, ARX-related

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

HealthStoryfor Intellectual disability, X-linked, with or without seizures, ARX-related

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 Intellectual disability, X-linked, with or without seizures, ARX-related 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.