Tinnitus is the perception of sound in the human ear in the absence of corresponding external sound(s).

  1. Tinnitus, or ringing in the ears, is the sensation of hearing ringing, buzzing, hissing, chirping, whistling, or other sounds.
  2. Some people hear more complex sounds that vary over time.
  3. The sounds may be intermittent, continuous, or pulsating in time with the heart beat.