The most frequent chief complaint of patients with clinical otosclerosis is hearing loss, although tinnitus and vertigo may also occur. Patients with otosclerosis usually present with bilateral hearing loss (~70% of patients) that has been gradually worsening over many years. Typically, the hearing loss starts in one ear and, over time, progresses to involve the other ear.
References: Hohman MH, Khan MAB. Otosclerosis. [Updated 2024 Mar 1]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK560671/