Basics
What is a Cochlear Implant?
A cochlear implant is a small electronic medical device that bypasses damaged parts of the inner ear and directly stimulates the hearing nerve, enabling sound perception in severe-to-profound hearing loss.
A cochlear implant (CI) has two parts: an internal implant placed under the skin behind the ear, and an external sound processor worn on or behind the ear. Together they convert sound into electrical signals that the hearing nerve carries to the brain.
Unlike a hearing aid (which amplifies sound), a cochlear implant directly stimulates the auditory nerve. CIs are recommended when hearing aids no longer provide enough benefit — typically in severe to profound sensorineural hearing loss.
Frequently asked questions
Is a cochlear implant the same as a hearing aid?
No. Hearing aids amplify sound; cochlear implants electrically stimulate the auditory nerve and are used when hearing aids no longer help enough.
Will a cochlear implant restore normal hearing?
It restores access to sound — most users hear and understand speech well after therapy, but it is not identical to natural hearing.
Is the surgery risky?
CI surgery is a well-established procedure with low complication rates when performed by experienced surgeons. Your team will discuss specific risks with you.
Medical disclaimer: This information is for awareness and education only. It does not replace consultation with a qualified ENT surgeon, audiologist or medical professional. Cochlear implant eligibility must be determined after clinical evaluation and diagnostic testing.
Reviewed by HearClear Clinical Editorial Team · Last reviewed: 2026-06-15