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Living with Ehlers-Danlos syndrome due to tenascin-X deficiency

An inherited connective tissue condition with loose joints, stretchy skin, easy bruising, muscle weakness, and tiredness.

Understanding Ehlers-Danlos syndrome due to tenascin-X deficiency

TNXB-related classical-like Ehlers-Danlos syndrome (clEDS) is an inherited condition due to tenascin-X deficiency that resembles classic EDS.

People have very flexible joints, stretchy skin, and easy bruising, but not the wide, thin scars seen in classic EDS. Other findings include hand and foot differences, leg swelling without heart failure, mild muscle weakness, and nerve damage. Prolapse of the vagina, uterus, or rectum can occur, and tissue fragility has been reported. Fatigue is reported in more than half of affected people. Severity varies, even within a family.

Signs & symptoms

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

  • Very flexible joints
  • Stretchy skin and easy bruising
  • Joint pain and muscle aches
  • Muscle weakness
  • Nerve damage (peripheral neuropathy)
  • Tiredness (fatigue)

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 autoimmune and inflammatory disease specialists, bone and joint specialists, digestive system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in TNXB 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

    Ehlers-Danlos Society and Bobby Jones Chiari & Syringomyelia Foundation may keep lists of experts for this condition.

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists); Bone and joint specialists (orthopedists or orthopedic surgeons); Digestive system specialists (gastroenterologists); Genetic specialists (geneticists)
Expert care
Expert lists: Ehlers-Danlos Society, Bobby Jones Chiari & Syringomyelia Foundation
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 Ehlers-Danlos Society and other patient organizations
  • 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
Would genetic testing for the TNXB gene help our family?
What therapy can help with fatigue, pain, and weakness?
Which specialists should be involved in my care?

Quick facts

Symptoms usually startfrom Birth to Childhood
InheritanceAutosomal Recessive
GenesTNXB

GARD says changes in the TNXB gene cause this condition. It is autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

GeneticGastrointestinalSkin

Also known as: classical-like eds type 1; classical-like ehlers-danlos syndrome type 1; cleds type 1; eds due to tnx deficiency; eds, classic-like type; edscll1

Patient organizations

Source: NIH GARD · Ehlers-Danlos syndrome due to tenascin-X deficiencyGARD ID 8507 · 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 Ehlers-Danlos syndrome due to tenascin-X deficiency.

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