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 What is Tinnitus


Tinnitus is a symptom of an underlying condition was described as a perception of noise or ringing, buzzing, roaring, clicking, or hissing. Although the tinnitus is not a disease by itself. The tinnitus is a common problem affecting more than 20% of people.

The tinnitus can be divided into two categories:

  1. Subjective tinnitus:
  • Only the patient can hear.
  • The cause of may be from inner, middle, or outer ear.
  • More common type.
  1. Objective tinnitus:
    • The patient and the examiner can hear the tinnitus
    • Can be caused by muscle contraction in the ears or throat, temporomandibular joint, or from the blood vessel (narrowing) in the neck or ears.


 Causes of Subjective Tinnitus:

The most common cause of subjective tinnitus is the inner ear cell damage (40%).

  • Hearing loss: Prosbycusis, autoimmune hearing loss.
  • Brain lesion: Tremor, meningitis, MS, brain stroke, intracranial hypertension.
  • Medication: Numerous medications have been reported to cause tinnitus.
  • Heart trauma (whiplash)
  • Barotrauma
  • Loud noise exposure.
  • Systemic disease: Depression and anxiety, hypertension, hypothyroidism or hyperthyroidism, vitamin deficiency and hyperlipidemia


Causes of Objective Tinnitus (Pulsatile Tinnitus)

  • Intracranial hypertension in the most causes of pulsatile tinnitus
  • Arteriovenous malformation causes pulsatile tinnitus that is synchronous with heart beats.
  • Stenosis of the vessels in the neck causing whooshing sound synchronous with heart beats.
  • Hypertension
  • Vascular tumor like glomus lymphoma.

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