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Sunday, May 3, 2009

Symptoms Of Tinnitus

By Matt Hellstrom

If you hear a noise that seems to be coming from inside your head, you are experiencing tinnitus. Tinnitus is a symptom, not a disease. According to the experts at the National Institute on Deafness, most people will experience tinnitus at some point in their lives. Tinnitus symptoms can be acute (temporary) or chronic (reoccurring or permanent) and can be rooted in a wide range causes, the two most common being hearing loss and loud noise and certain types of medication.

A major cause of tinniuts is hearing loss. Cochlea damage due to trauma caused by prolonged or acute exposure to loud noise aging, diseases and infections of the ear and simple aging can cause hearing loss that is accompanied by tinnitus symptoms. It is theorized that tinnitus due to hearing loss may be the result of the brain not receiving expected auditory impact, triggering the blind-spot response, whereby the brain will fill-in missing information.

Exposure to loud sounds is a frequent cause of temporary tinnitus. Examples of when this might occur are; after attending a music concert; after watching an action movie in a theatre where the volume exceeded recommended levels; after using power tools in an enclosed space. The most commonly reported tinnitus symptom in these cases is a ringing in the ears. Prolonged exposure to a noisy environment without ear protection can result in permanent hearing damage and chronic tinnitus (see below).

Medication: Overuse of common aspirin, also called ASA or acetylsalicylic acid, can cause tinnitus symptoms, as can the anti-malarial drug quinine and antibiotics that include aminoglycoside.

Sounds other than ringing that are frequently reported by tinnitus sufferers include sounds like waves, crickets, wind and whistling as well as clicking and humming as if from an electronic device.

Clicking sounds heard in the inner ear can be auditory signals that reach the inner ear through skeletal conduction. This sound is usually found to be caused by a misaligned jaw bone, but can also be caused by spasms of the muscles of the ear or throat. Tinnitus symptoms that involve the whoosh of blood being pumped through the vessels of the ear are know as pulsatile (as in pulse) tinnitus. Common causes of pulsatile tinnitus symptoms are high blood pressure, anemia or an overactive thyroid.

On rare occasions, tinnitus symptoms are attributable to tumors or cysts in the middle or inner ears. A tumor that presses on the blood vessels of the ear can cause pulsatile tinnitus. Tumors on the nerve that carries the signals from the ear to the acoustic processing center of the brain cause acoustic neuroma. This condition occurs in only one ear, which distinguishes it from other types of tinnitus and should be examined by a doctor immediately. - 17274

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