Tinnitus is the perception of abnormal ear or head noises without any external sound. Noises may be high pitched, ringing, clicking, or buzzing. Pulsatile tinnitus is caused by the flow of blood that accompanies each heartbeat.

Anatomy of the Ear
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Tinnitus is caused by:

  • Cochlear damage from noise exposure
  • Hearing loss
  • Damage to the auditory system

Occasional episodes of tinnitus lasting at most a few minutes are quite common in normal people, especially after exposure to loud noises.