Learn About Otosclerosis

What is the definition of Otosclerosis?

Otosclerosis is an abnormal bone growth in the middle ear that causes hearing loss.

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What are the alternative names for Otosclerosis?

Otospongiosis; Hearing loss - otosclerosis

What are the causes of Otosclerosis?

The exact cause of otosclerosis is unknown. It may be passed down through families.

People who have otosclerosis have an abnormal extension of sponge-like bone growing in the middle ear cavity. This growth prevents the ear bones from vibrating normally in response to sound waves. These vibrations are needed in order for you to hear.

Otosclerosis is the most common cause of middle ear hearing loss in young adults. It typically begins in early to mid-adulthood. It is more common in women than in men. The condition may affect one or both ears.

Risks for this condition include pregnancy and a family history of hearing loss. White people are more likely to develop this condition than people of other races.

What are the symptoms of Otosclerosis?

Symptoms include:

  • Hearing loss (slow at first, but worsens over time)
  • Ringing in the affected ear (tinnitus)
  • Vertigo or dizziness
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What are the current treatments for Otosclerosis?

Otosclerosis may slowly get worse. The condition may not need to be treated until you have more serious hearing problems.

Using some medicines such as fluoride, calcium, or vitamin D may help to slow the hearing loss. However, the benefits of these treatments have not yet been proven.

A hearing aid may be used to treat the hearing loss. This will not cure or prevent hearing loss from getting worse, but it may help with symptoms.

Surgery can cure or improve conductive hearing loss. Either all or part of one of the small middle ear bones behind the eardrum (stapes) is removed and replaced with a prosthesis.

  • A total replacement is called a stapedectomy.
  • Sometimes only part of the stapes is removed and a small hole is made in the bottom of it. This is called a stapedotomy. Sometimes a laser is used to help with the surgery.
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What is the outlook (prognosis) for Otosclerosis?

Otosclerosis gets worse without treatment. Surgery can restore some or all of your hearing loss. Pain and dizziness from the surgery go away within a few weeks for most people.

To reduce the risk of complications after surgery:

  • DO NOT blow your nose for 2 to 3 weeks after surgery.
  • Avoid people with respiratory or other infections.
  • Avoid bending, lifting, or straining, which may cause dizziness.
  • Avoid loud noises or sudden pressure changes, such as scuba diving, flying, or driving in the mountains until you have healed.

If surgery does not work, you may have total hearing loss. Treatment for total hearing loss involves developing skills to cope with deafness, and using hearing aids to transmit sounds from the non-hearing ear to the good ear.

What are the possible complications of Otosclerosis?

Complications may include:

  • Complete deafness
  • Abnormal taste in the mouth or loss of taste to part of the tongue, temporary or permanent
  • Infection, dizziness, pain, or a blood clot in the ear after surgery
  • Nerve damage
When should I contact a medical professional for Otosclerosis?

Contact your health care provider if:

  • You have hearing loss
  • You develop fever, ear pain, dizziness, or other symptoms after surgery
Ear anatomy
What are the latest Otosclerosis Clinical Trials?
The Structure and the Function of the Taste Buds After the Stapes Surgery and the Patients Quality of Life and it's Correlation to the Change of the Threshold of the Chorda Tympani Electrical Stimulation

Summary: Patients admitted for the otosclerosis operation are included in the study. The Narrow Band Imaging (NBI) of their taste buds is performed before the operation. The sensory function of the anterior 2/3 of the tongue is tested with the two point discrimination discs, the taste is tested with taste strips and the SF-36 questionnaire is applied. During the operation in local anesthesia the threshold ...

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Effects of Bisphosphonates on OI-Related Hearing Loss: A Pilot Study

Summary: Osteogenesis Imperfecta-related hearing loss usually occurs in individuals with mild (type I) OI and is much earlier in onset than age-related hearing loss, with the majority of individuals experiencing some minor hearing loss in their 20s. Bisphosphonates have been successfully used to treat otosclerosis, a common cause of hearing loss similar to OI-related hearing loss. As many individuals with ...

What are the Latest Advances for Otosclerosis?
Long-Term Audiometric Outcomes of a Self-Crimping Stapes Prosthesis With CO2 Laser Stapedotomy.
Hearing and Disease-Specific Health-Related Quality of Life in Patients with Otosclerosis after Stapedotomy - a Trial of the SPOT-25 Questionnaire.
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Stapedotomy Versus Hearing Aids in the Management of Conductive Hearing Loss Caused by Otosclerosis: A Prospective Comparative Study.
Who are the sources who wrote this article ?

Published Date: May 30, 2022
Published By: Josef Shargorodsky, MD, MPH, Johns Hopkins University School of Medicine, Baltimore, MD. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

What are the references for this article ?

House JW, Cunningham CD. Otosclerosis. In: Flint PW, Francis HW, Haughey BH, et al, eds. Cummings Otolaryngology: Head and Neck Surgery. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 146.

Ironside JW, Smith C. Central and peripheral nervous systems. In: Cross SS, ed. Underwood Pathology. 7th ed. Philadelphia, PA: Elsevier; 2019:chap 26.

O'Handley JG, Tobin EJ, Shah AR. Otorhinolaryngology. In: Rakel RE, Rakel DP, eds. Textbook of Family Medicine. 9th ed. Philadelphia, PA: Elsevier; 2016:chap 18.

Rivero A, Yoshikawa N. Otosclerosis. In: Myers EN, Snyderman CH, eds. Operative Otolaryngology Head and Neck Surgery. 3rd ed. Philadelphia, PA: Elsevier; 2018:chap 133.