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Living with Autosomal dominant nonsyndromic hearing loss 23

An inherited form of hearing loss linked to changes in the SIX1 gene.

Understanding Autosomal dominant nonsyndromic hearing loss 23

Autosomal dominant nonsyndromic hearing loss 23 is an inherited type of deafness caused by a change in the SIX1 gene.

This is a form of hearing loss that runs in families without other major syndrome features. GARD lists conductive hearing loss, which means sound has trouble passing through the outer or middle ear, as the most common symptom.

Signs & symptoms

Symptoms vary from person to person. GARD lists this as the most common:

  • Conductive hearing loss
  • Pit in front of the ear (less common)
  • Inner ear hearing loss (sensorineural, less common)
  • Urine flowing backward to the kidneys (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 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
Can genetic testing for the SIX1 gene confirm my diagnosis?
Should my kidneys be checked because of the SIX1 gene?
What hearing support options might help me?

Quick facts

InheritanceAutosomal Dominant

It is caused by a change (mutation) in the SIX1 gene. It is autosomal dominant, so a change in one copy of the gene can cause it.

Also known as: dfna23 nonsyndromic hearing loss and deafness

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Autosomal dominant nonsyndromic hearing loss 23GARD ID 1708 · 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 Autosomal dominant nonsyndromic hearing loss 23.

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