Hearing loss can be caused by several different factors including aging, injury, noise exposure, and even heredity. Those factors affect the auditory nerve, causing sensorineural hearing loss, which is the most common type of hearing loss. But there is a second, less common type of hearing loss, known as conductive hearing loss. Conductive hearing loss affects the outer or middle ear rather than the auditory nerve, the way sensorineural hearing loss does. Conductive hearing loss ...