There are three types of hearing loss: conductive, sensorineural and mixed. Conductive hearing loss is a form of hearing impairment where the transmission of sound from the environment to the inner ear is impaired, usually from an abnormality of the auditory canal or middle ear. This form of hearing loss can be temporary or permanent. Sensorineural hearing loss is due to an abnormality of the inner ear or the auditory nerve. This condition can occur at all ages, and is usually permanent. Mixed hearing loss is a combination of both.
