Sensorineural Deafness, also called nerve deafness, is a type of hearing loss resulting from damage to the inner ear, the nerve pathway that connects to the brain, or the central processing centers of the brain. The most common cause of Sensorineural deafness is when the hairs in the inner ear are damaged. This could be from prolonged exposure to loud noises, excessive intake of drugs that may cause deafness such as aspirin or quinine, infectious illnesses like German measles or mumps, or a congenital abnormality.