What is tinnitus?
Tinnitus refers to sounds in the ears (or head) not related to external noise. Often, tinnitus is a ringing sound, however it can sound like whistling, buzzing, hissing or humming. It may be constant or intermittent.
Most people have experienced tinnitus after being exposed to loud sounds, even for a short period of time, e.g. after being in a noisy pub, a sporting event or at a very loud concert. In quiet conditions, such as a sound-proof booth or when lying in bed, many people will ‘hear’ sounds.