Tinnitus: Ear and Identified Underlying Cause

Topics: Ear, Tinnitus, Auditory system Pages: 6 (1921 words) Published: January 3, 2013
Introduction to Tinnitus
Tinnitus (TIN-i-tus) is noise or ringing in the ears. A common problem, tinnitus affects about 1 in 5 people. Tinnitus isn't a condition itself — it's a symptom of an underlying condition, such as age-related hearing loss, ear injury or a circulatory system disorder. Although bothersome, tinnitus usually isn't a sign of something serious. Although it can worsen with age, for many people, tinnitus can improve with treatment. Treating an identified underlying cause sometimes helps. Other treatments reduce or mask the noise, making tinnitus less noticeable. Symptoms

Tinnitus involves the annoying sensation of hearing sound when no external sound is present. Tinnitus symptoms include these types of phantom noises in your ears: Ringing Buzzing Roaring Clicking Whistling Hissing

The phantom noise may vary in pitch from a low roar to a high squeal, and you may hear it in one or both ears. In some cases, the sound can be so loud it can interfere with your ability to concentrate or hear actual sound. Tinnitus may be present all the time, or it may come and go. If you have tinnitus that bothers you, see your doctor. Make an appointment to see your doctor if you develop tinnitus after an upper respiratory infection, such as a cold, and your tinnitus doesn't improve within a week. See your doctor as soon as possible if you have tinnitus that occurs suddenly or without an apparent cause, or if you have hearing loss or dizziness with the tinnitus. Causes

A number of health conditions can cause or worsen tinnitus. In many cases, an exact cause is never found. A common cause of tinnitus is inner ear cell damage. Tiny, delicate hairs in your inner ear move in relation to the pressure of sound waves. This triggers ear cells to release an electrical signal through a nerve from your ear (auditory nerve) to your brain. Your brain interprets these signals as sound. If the hairs inside your inner ear are bent or broken, they can "leak" random electrical impulses to your brain, causing tinnitus. Other causes of tinnitus include other ear problems, chronic health conditions, and injuries or conditions that affect your auditory nerves or the hearing center in your brain. Common causes of tinnitus

In many people, tinnitus is caused by one of these conditions: ·Age-related hearing loss. For many people, hearing worsens with age, usually starting around age 60. Hearing loss can cause tinnitus. The medical term for this type of hearing loss is presbycusis. ·Exposure to loud noise. Loud noises, such as those from heavy equipment, chain saws and firearms, are common sources of noise-related hearing loss. Portable music devices, such as MP3 players or iPods, also can cause noise-related hearing loss if played loudly for long periods. Tinnitus caused by short-term exposure, such as attending a loud concert, usually goes away; long-term exposure to loud sound can cause permanent damage. ·Earwax blockage. Earwax protects your ear canal by trapping dirt and slowing the growth of bacteria. When too much earwax accumulates, it becomes too hard to wash away naturally (cerumenal impaction), causing hearing loss or irritation of the eardrum, which can lead to tinnitus. ·Ear bone changes. Stiffening of the bones in your middle ear (otosclerosis) may affect your hearing and cause tinnitus. This condition, caused by abnormal bone growth, runs in families. Other causes of tinnitus

Some causes of tinnitus are less common. These include:
·Meniere's disease. Doctors think this inner ear disorder is caused by abnormal inner ear fluid pressure or composition. ·Stress and depression. These conditions are commonly associated with tinnitus and seem to aggravate it. ·TMJ disorders. Problems with the temperomandibular joint, the joint on each side of your head in front of your ears, where your lower jawbone meets your skull, can cause tinnitus. ·Head injuries or neck injuries. These neurological disorders can affect the inner ear,...
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