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Living with Coxoauricular syndrome

A very rare bone condition with short stature, hip dislocation, and small ears with hearing loss.

Understanding Coxoauricular syndrome

Coxoauricular syndrome is a very rare bone condition marked by short stature, hip dislocation, and small ears with hearing loss.

It has been described only in a mother and her three daughters. There can also be small changes in the spine and pelvis. GARD notes there have been no further descriptions in the medical literature since 1981. It is present from birth.

Signs & symptoms

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

  • Short stature
  • Hip dislocation
  • Small ears (microtia)
  • Missing ear canal
  • Hearing loss
  • Low bone density

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 bone and joint specialists and genetic specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Genetic specialists (geneticists)
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 rare disease patient organizations for support
  • 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 help our family?
What hearing support is available?
What treatment can help with the hips and growth?

Quick facts

Symptoms usually startNewborn
InheritanceAutosomal Dominant, X-Linked

GARD says changes in genes cause this condition. It doesn't name a gene. Inheritance may be autosomal dominant (one changed copy is enough) or X-linked.

Genetic

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Coxoauricular syndromeGARD ID 1558 · 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 Coxoauricular syndrome.

Explore the Coxoauricular syndrome blog

Explore research for Coxoauricular syndrome

Explore actively recruiting Coxoauricular syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Coxoauricular syndrome 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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