Musical ear syndrome causes
There is no single cause of MES, but medical professionals believe that it’s a response to the auditory deprivation that occurs with hearing loss. When your brain doesn't hear enough sounds, it overcompensates for the lack of stimulation and starts to generate sounds by itself.
It’s understood that the condition normally occurs in older adults with hearing loss, but it can happen to those who lose their hearing at any age. Similarly, the condition is more common in those who are anxious or depressed, or are already suffering from tinnitus.
While the research is limited, it’s also believed that MES may be triggered by the implantation or removal of cochlear implants.