what is otosclerosis
Otosclerosis is the abnormal growth of bone of the MIDDLE ear. This bone prevents structures within the ear from working properly and causes hearing loss.n addition to hearing loss, some people with otosclerosis may experience dizziness, balance problems, or tinnitus. Tinnitus is a sensation of ringing, roaring, buzzing, or hissing in the ears or head that accompanies many forms of hearing loss.