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Otitis
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Otitis

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Ear infection; Infection - ear

Otitis is a general term for infection or inflammation of the ear.

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  • Causes

    Otitis can affect the inner or outer parts of the ear. The condition is classified according to whether it occurs suddenly and for a short time (acute) or repeatedly over a long period of time (chronic).

    • Otitis externa (swimmer's ear). Involves the outer ear and ear canal. A more severe form can spread into the bones and cartilage around the ear.
    • Otitis media (ear infection). Involves the middle ear, which is located just behind the eardrum.
    • Acute ear infection. Starts suddenly and lasts for a short period of time. It is often painful.
    • Chronic ear infection. Occurs when the ear infection does not go away or keeps coming back. It may cause long-term damage to the ear.
    • Otitis media with effusion. Occurs when there is thick or sticky fluid behind the eardrum in the middle ear, but there is no ear infection.

Related Information

  Swimmer's ear Malignant otitis e...Ear infection - ac...Ear infection - ch...Otitis media with ...   Ear tube surgery -...   Ear infections

References

Pier GB. Pseudomonas and related gram-negative bacillary infections. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 24th ed. Philadelphia, PA: Saunders Elsevier; 2011:chap 314.

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Review Date: 8/30/2014  

Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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