causes of otosclerosis
Otosclerosis is most often caused when one of the bones in the middle ear, the stapes, becomes stuck in place. When this bone is unable to vibrate, sound is unable to travel through the ear and hearing becomes impaired (see illustration).
Otosclerosis is one of the most common causes of progressive deafness in young adults. 'Otosclerosis is caused by an abnormal growth of bone in the ears, which causes hearing loss. In most cases, a surgical operation will restore the hearing. Otosclerosis has to do with the three small bones in the middle ear, more specifically the stapes. A part of the bone will grow abnormally and this bone growth will prevent the stapes from vibrating normally in response to sound.