Tinnitus is the feeling of sound in human ear without any existence of corresponding external sound. It is also known as ringing in the ears. Tinnitus is not a disease, it is a symptom rather. Tinnitus may be classified as follows: objective tinnitus and subjective tinnitus. In case of objective tinnitus, other people other than patient can hear the ringing noise in the patient's ears whereas in case of subjective tinnitus, the patient alone can hear the ringing. Subjective tinnitus is a more widespread type.
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