There are four types of hearing loss: conductive (outer and/or middle ear damage or blockage); Sensorineural (hair cells of the inner ear or nerve pathways that connect to the brain are damaged); and Mixed (both Conductive and Sensorineural). Fourth, is Auditory Neuropathy/Dyssynchrony Spectrum Disorder (ANSD). ANSD means although the inner ear (cochlea) receives sounds normally, the signals leaving the cochlea are disorganized, or the nerve processes sound abnormal.
While surgery can correct some types of hearing loss, hearing aids might still be required to help improve hearing.
A test is done to determine what type of hearing loss a person might have. An audiologist will perform this test using sound volumes and pitches to one ear at a time.
Bring all your medical records with you for the audiologist to review. More importantly, if you become ill before your appointment, cancel the test and reschedule. Some illnesses, such as the common cold, can risk the hearing test not being accurate.
If the results of a hearing test conclude there is a need for a hearing aid, a person should determine his or her priorities in terms of choosing the correct hearing aid. Priorities include being able to adjust the microphone on the hearing aid. Some people may work in an environment where the sound volume changes constantly.