Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Otosclerosis
Medically reviewed by Min Clinic Staff | Updated: January 2026
Otosclerosis: The abnormal formation of new bone in the middle ear that gradually immobilizes the stapes (stirrup bone) and prevents it from vibrating in response to sound, causing a progressive conductive loss of hearing. Otosclerosis usually affects both ears. It is a common disorder, especially among young women. Pregnancy may trigger it.