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'The word tinnitus (pronounced ti-NIGHT-us or TIN-i-tus) comes from Latin and means “to tinkle or to ring like a bell,” and is the medical term for the perception of sound when no external sound is present. It is a sensation of a ringing or roaring noise in the ear.
It can come on gradually, or abruptly, and last for a short time, return sporadically, or be permanent, and it can occur in one ear or both. The sounds may be high- or low-pitched, loud or soft, intermittent or continuous, and may be heard as a buzzing, roaring, hissing, clicking, high-pitched whining, low-pitched hum, even a heart-like pulsing. In most cases, only the sufferer can hear the noise, but sometimes a doctor can hear it when listening to the person’s neck, jaw, temple, or ear with a stethoscope.'
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