Diagnosis Slowly progressive, bilateral(80%), asymmetric, conductive hearing loss Tinnitus is associated with 75% patients The age of onset of hearing loss is young u History of significant ear infections makes the diagnosis of otosclerosis less likely u 25% of patients present with some vestibular complaintsDiagnosis ◼ Slowly progressive, bilateral (80%), asymmetric, conductive hearing loss ◼ Tinnitus is associated with 75% patients ◼ The age of onset of hearing loss is young ◼ History of significant ear infections makes the diagnosis of otosclerosis less likely. ◼ 25% of patients present with some vestibular complaints