The main advantage of a cochlear implant is an increased hearing level, while potential disadvantages include the high cost and risks associated with surgery. Improved hearing has a number of advantages, including an increased chance of hearing potential dangers, such as cars or sirens.
Cochlear implants are effective at increasing a person's hearing level. This allows a person to hear quieter sounds and often simplifies communication with other people. The effects of a cochlear implant can vary, however, and it may not increase hearing enough for a person to hear speech.
A potential advantage of a cochlear implant is that the person may be suitable for jobs that are not appropriate for deaf people. Children with cochlear implants are also often able to function better in regular schools compared with deaf children.
One potential disadvantage of cochlear implants is that they don't transmit sound the same way an ear does. This means that things sound different and can be difficult to identify. This is more of a problem for adults, as children often find it easier to adapt to the new sounds.
The cost of a cochlear implant is high. This can make it unobtainable unless a person has an insurance plan that pays for it.