Conditions InDepth: Middle Ear Infection
Otitis, or ear infection, can affect the external, middle or the inner part of the ear. Middle ear infection (otitis media) is a common form of ear infection. The “middle ear” is the air-filled part of the ear that lies just behind the ear drum. Doctors cannot normally see the middle ear, but many middle ear problems will produce changes in the appearance of the ear drum that allow an appropriate diagnosis to be made.Ear infection can occur suddenly, leading to "acute otitis," or can last longer, as in "chronic otitis." Middle ear infections may occur following a cold or other virus, with nasal allergy symptoms, or they may develop without a known cause. Ear infections are much more common in children than adults. For that reason, most of the information on these pages is geared toward children, although the same recommendations apply to adults as well.
|The Middle Ear|
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- Children have eustachian tubes which are smaller, more level, and straighter than those in adults.
- The eustachian tubes connect the middle ear with the back of the nose and help to stabilize air pressure within the ear.
- The difference in anatomy which makes it easier for bacteria to enter the middle ear from the nose and throat.
- Children have larger adenoids than do adults.
- The adenoids are tonsil-like structures located just out of sight at the junction of the back of the nose and the upper throat. Like tonsils, adenoids tend to be much bigger in childhood than later in life.
- Ear infections may be more likely to develop when swollen adenoids block the nearby openings of the eustachian tubes.
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