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Ear infection

Ear infection: Introduction

An ear infection is a common type of infection and is the result of an invasion of bacteria or viruses into the ear. An ear infection is a general term for several types of infections of the ears.

The ear includes three areas: the outer ear, middle ear and inner ear. An ear infection of the outer ear canal is called otitis externa or swimmer's ear. An ear infection of the middle ear is called otitis media or middle ear infection. Labyrinthitis is an inflammation of the inner ear that can be caused by a bacterial infection or viral infection of the inner ear.

Sound waves travel through the outer ear, into the middle ear where they cause vibration of the tympanic membrane. These vibrations are then transmitted through the auditory bones and into the cochlea of the inner ear. In the inner ear, sound vibrations are converted into electrical impulses and carried by the 8th cranial nerve to the brain.

An ear infection can interfere with this process and result in symptoms that typically include ear pain and hearing impairment. Symptoms of ear infection may vary between individuals in character and intensity. The specific types of ear infection also cause some differing symptoms. Complications of an ear infection can be serious in some cases and result in brain abscess or permanent hearing loss. For more information on symptoms and complications, refer to symptoms of ear infection.

Ear infections occur most commonly in infants and young children, although they can happen at any age. Certain other populations are at a higher risk for developing ear infections. They include swimmers and people who have had recent illnesses, especially upper respiratory infection. Going to a different climate or altitude, not being breastfed and living in a cold climate can also increase the risk. Ear infections can also run in families.

Diagnosing an ear infection begins with taking a thorough personal and family medical history, including symptoms, and completing a physical and ear examination. The ear is examined with a lighted instrument called an otoscope.

Making a diagnosis may also include performing a variety of hearing tests (audiometry tests). A person with an ear infection, especially chronic otitis media may need to consult with ear specialists, such as an audiologist and/or otolaryngologist, in order to get a full examination, testing, diagnosis and treatment.

A diagnosis of an ear infection may be missed or delayed in some populations. For information on misdiagnosis, refer to misdiagnosis of ear infection.

Treatment for an ear infection varies depending on the specific type of infection. Treatment may include oral antibiotics and/or antibiotic ear drops and corticosteroid ear drops. In some cases that do not resolve with medication, a surgical procedure may be needed to insert tubes in the ears, remove ear fluid or infected tissue and/or repair a damaged eardrum. For more information on treatment, refer to treatment of ear infections. ...more »

Ear infection: An infection in the ear. The infection can have bacterial or viral origins. An ear infection is also known as otitis media and can cause pain, fever or even loss of hearing. Severe cases can lead to perforation of the eardrum. ...more »

Ear infection: Symptoms

An ear infection often occurs in conjunction with a variety of symptoms that vary depending on the specific form of ear infection. Symptoms may also vary in character and intensity between individuals.

Symptoms of an infection of the outer ear canal (otitis externa or swimmer's ear) include ear pain when touching the outside of the ear. The pain can be extreme, and there may also be ...more symptoms »

Ear infection: Treatments

The first step in treating an ear infection is prevention. Prevention measures include using the same precautions that are recommended to prevent the spread of infectious diseases, such as the flu or colds. These include covering the mouth and nose with the elbow or a tissue when you sneeze or cough and washing hands frequently with soap and water for at least 15 ...more treatments »

Ear infection: Misdiagnosis

Because ear infections most commonly occur in infants and young children who do not yet communicate well, a diagnosis of ear infection may be delayed or missed. Symptoms of ear infection can be similar to or occur with symptoms of other conditions, such as tonsillitis, headache, tooth problems, influenza, upper respiratory infection and TMJ. ...more misdiagnosis »

Symptoms of Ear infection

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Wrongly Diagnosed with Ear infection?

Alternative Treatments for Ear infection

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Types of Ear infection

Causes of Ear infection

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Disease Topics Related To Ear infection

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Ear infection: Undiagnosed Conditions

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Misdiagnosis and Ear infection

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Ear infection: Research Doctors & Specialists

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Evidence Based Medicine Research for Ear infection

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Ear infection: Animations

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