Tinnitus is an annoying condition where one hears abnormal sound without actually it being there.

Different patients describe the sound differently, such as ringing, buzzing, high pitched whining, hissing, shrieking, humming, whistling sound, etc. It is a subjective perception.

In most cases, tinnitus would be continuous. However, in many it may be intermittent, getting more pronounced under certain circumstances. Many patients would complain of this as very severe and disturbing sensation.

Actually, tinnitus is not a disease but a symptom of the disease.