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how can I tell if my child has an ear infection?

Source: National Institute on Deafness and Other Communication Disorders

What is an ear infection?
An ear infection is an inflammation of the middle ear, usually caused by bacteria, that occurs when fluid builds up behind the eardrum. Anyone can get an ear infection, but children get them more often than adults. Three out of four children will have at least one ear infection by their third birthday. In fact, ear infections are the most common reason parents bring their child to a doctor. The scientific name for an ear infection is otitis media (OM).

How can I tell if my child has an ear infection?
Most ear infections happen to children before they have learned how to talk.
If your child is not old enough to say “My ear hurts,” here are a few things to look for:
-- trouble sleeping
-- fussiness and crying
-- fluid draining from the ear
-- tugging or pulling at the ear(s)
-- clumsiness or problems with balance
-- trouble hearing or responding to quiet sounds
-- fever (especially in infants and younger children)

What causes an ear infection?
An ear infection is usually caused by bacteria and often begins after a child has a sore throat, cold, or other upper respiratory infection. If the upper respiratory infection is bacterial, these same bacteria may spread to the middle ear. If the upper respiratory infection is caused by a virus, such as a cold, bacteria may be drawn to the microbe-friendly environment and move into the middle ear as a secondary infection. Because of the infection, fluid builds up behind the eardrum.

What are the symptoms of an ear infection?
There are three main types of ear infections. Each has a different combination of symptoms.
-- acute otitis media (AOM) is the most common ear infection. Parts of the middle ear are infected and swollen and fluid is trapped behind the eardrum. This causes pain in the ear - commonly called an earache. Your child might also have a fever.
-- otitis media with effusion (OME) sometimes happens after an ear infection has run its course and fluid stays trapped behind the eardrum. A child with OME may have no symptoms, but a doctor will be able to see the fluid behind the eardrum with a special instrument.
-- chronic otitis media with effusion (COME) happens when fluid remains in the middle ear for a long time or returns over and over again, even though there is no infection. COME makes it harder for children to fight new infections and also can affect their hearing.





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