Tinnitus is a hearing condition where people hear noises, hisses or hums that have no external source and is often called ‘ringing in the ears’.
It can be constant or occasional, loud or soft, mild or severe and can be heard in one or both ears or feel like it is somewhere in the middle.
While the exact cause of tinnitus is not always known, tinnitus can arise because of some sort of damage in the auditory system, such as exposure to loud sounds.
Whilst this may be the catalyst for tinnitus, the ongoing nature of it is generated by the brain.
Tinnitus is a symptom, not a disease, and it can change over time in response to many factors.