What is tinnitus?
Tinnitus is the perception of sound without an external sound source.
Symptoms, causes and assessment
It may sound like ringing, humming or another noise, in one or both ears. Noise exposure, hearing loss and certain medicines may be involved. A pulse-synchronous sound needs a different assessment.
Care and when to seek help
Hearing assessment and investigation guide care. Seek prompt attention for sudden hearing loss, vertigo, neurological signs or persistent one-sided sound; be cautious about guaranteed cures.
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