A sensory hearing loss is permanent hearing loss and there are usually not any surgical or medical treatment available to reverse or improve the hearing loss. This type of hearing loss consists of damage to the cochlea in the ear, which is the ‘hearing centre’. Damage to the cochlea can occur due to age, infection, long term exposure to loud sounds (such as working in the mines or with loud machinery daily), acoustic trauma (such as sudden, close range explosions or gun shots) or medication. Most of the time, the intervention of a sensory hearing loss is the fitting of hearing aids.