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Superior canal dehiscence (thin bone over the inner ear)

Also called: Superior canal dehiscence

Thin bone over the inner ear causing dizziness with loud sounds and hearing your own eye movements or heartbeat.

TreatmentSurgery if severe

Overview

People may hear their heartbeat, eye movements, or footsteps loudly in one ear.

Symptoms

Common signs:

  • Dizziness with loud sounds

Less common

  • Hearing own voice loudly
  • Ear fullness

When to get medical care

Call 911This isn't an emergency by itself. Call 911 for trouble breathing, chest pain, or fainting.
Get care todayNew or worse symptoms, or symptoms with fever.
See a doctor soonSymptoms that last or keep coming back.

Causes

Thin bone.

Does it spread or run in families?

  • It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

  • Adults 40 to 60: Most often found then

Possible complications

Diagnosis

A clinician asks about your symptoms and may order tests.

The exam

A physical exam.

Tests

Tests, if needed:

  • CT:

Treatment

Treatment depends on the cause and how severe it is.

Self-care

  • Avoid loud sounds that trigger dizziness

Prevention

To lower your risk or prevent problems:

  • There is no known way to prevent it. Early checkups help find it sooner.

Which doctor treats this

  • Start with your primary care provider (family doctor or internist).
  • They may send you to an ENT doctor (ear, nose, and throat doctor).

Living with it

Support groups and helplines

Children, pregnancy, and older adults

  • Adults: Usually found after 40.

Pregnancy and breastfeeding

  • If you're pregnant or planning to be, tell your prenatal provider about this condition.
  • Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
  • Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
  • Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

Outlook

Surgery can relieve symptoms.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

  • A list of your medicines and supplements
  • Notes on when symptoms started and what makes them better or worse

Questions to ask

  • What's causing this?
  • What treatment do you recommend?
  • Would surgery help?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Superior canal dehiscence (thin bone over the inner ear)

Sources

Last updated 2026-11-12.