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Living with Bilateral microtia-deafness-cleft palate syndrome

A rare genetic syndrome with small ears, hearing loss, and cleft palate.

Understanding Bilateral microtia-deafness-cleft palate syndrome

Bilateral microtia-deafness-cleft palate syndrome is a rare genetic syndrome with small ears on both sides, hearing loss, and a cleft palate.

It is noticed in newborns. Hearing loss is severe to profound. The ear canal may be narrow, and the outer ear may be small or overfolded.

Signs & symptoms

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

  • Small ears on both sides (microtia)
  • Hearing loss
  • Cleft palate
  • Narrow ear canal
  • Overfolded outer ear

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 ear, nose, and throat specialists and genetic specialists.

  3. Consider genetic testing

    Changes in HOXA2 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

    World Craniofacial Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Ear, nose, and throat specialists (otolaryngologists); Genetic specialists (geneticists)
Expert care
Expert lists: World Craniofacial 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 World Craniofacial Foundation 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
Can HOXA2 gene testing confirm the diagnosis?
What hearing options are available for my child?
Which specialists should plan care for the ears and palate?

Quick facts

Symptoms usually startNewborn
InheritanceAutosomal Dominant, Autosomal Recessive
GenesHOXA2

Changes in the HOXA2 gene cause this condition. It can be inherited in an autosomal dominant or autosomal recessive way.

Genetic

Also known as: bilateral microtia-hearing loss-cleft palate syndrome; microtia with or without hearing impairment (ad); microtia, hearing impairment, and cleft palate (ar)

Patient organizations

Source: NIH GARD · Bilateral microtia-deafness-cleft palate syndromeGARD ID 16966 · 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 Bilateral microtia-deafness-cleft palate syndrome.

Explore the Bilateral microtia-deafness-cleft palate syndrome blog

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