You may need a cochlear implant if you have problems with progressive deafness – deafness that worsens over time.
You may have become socially isolated, struggle to communicate with family, friends and anyone you're direct contact with. Some people find it difficult to work or find their job is under threat because of their hearing loss.
Progressive deafness can occur at any age and may be caused by a genetic condition, an accident or ongoing exposure to noise, perhaps in a factory.
Many people start to become deaf as they get older. This is because – like other parts of the body – sometimes the ears are not able to function as well as they used to.
A cochlear implant is useful for those with a severe hearing loss and can be useful for adults of any age – from those in their 20s to those in their 80s, or even older.