Sensorineural hearing loss
Sensorineural hearing loss occurs after damage has occured to the inner ear. Difficulty hearing in background noise can be the first sign of difficulty for those with sensorineural hearing loss. Overall difficulty hearing the television, feeling like people are mumbling, or difficulties hearing softer sounds are all indicators of a sensorineural hearing loss. More often than not, the speaker is not mumbling, and the hearing loss is the cause of the difficulties.
Age-related hearing loss (presbycusis)
Medications toxic to the inner ear
Family history of hearing loss
Excessive noise exposure over time
Sensorineural hearing loss is permanent and irreversible in nature. Once there is damage to the inner ear, hearing aids are required and are the only form of treatment to improve hearing abilities.