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Otitis media

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Otitis media is a group of diseases that cause swelling in the middle ear.

Otitis Media
Otitis Media

This condition is very common around the world. One main type is acute otitis media, or AOM. This is a fast infection that usually causes ear pain. Young children might pull at their ears or cry more. They may also have a fever or sleep poorly. AOM can be caused by bacteria or viruses. It often happens because of how a child's body is built.

Otitis media world map - DALY - WHO2004
Otitis media world map - DALY - WHO2004

To understand how it works, we look at the Eustachian tube. This tube helps keep the middle ear working correctly. Sometimes, the lining of the nose and throat gets swollen. This can happen from a cold or allergies. This swelling makes the Eustachian tube stop working well. Because of this, fluid can move into the middle ear. If that fluid becomes infected with bacteria, it causes AOM. Another type is otitis media with effusion, often called glue ear. This is when non-infectious fluid stays in the ear for weeks.

Subtotal Perforation of the right tympanic membrane
Subtotal Perforation of the right tympanic membrane

Doctors have studied these ear issues for a long time. They use special tools to see what is happening inside. A doctor might use a pneumatic otoscope to look at the eardrum. This tool uses a puff of air to see if the eardrum moves. If the eardrum is bulging or red, it helps them make a diagnosis. For more serious cases, they might use an MRI or a CT scan. These tools show the bones and tissues in the ear. They help doctors see if there are any dangerous complications.

There are many important facts about how often this happens. Every year, about 11% of people get AOM. This means about 710 million cases happen worldwide. Half of these cases are in children under five years old. About 80% of children will have glue ear before they turn ten. Another type, called chronic suppurative otitis media, affects millions of people. It can cause a hole in the eardrum and ear discharge. In 2015, otitis media resulted in 3,200 deaths. This is lower than the 4,900 deaths recorded in 1990.

Otitis media world map-Deaths per million persons-WHO2012
Otitis media world map-Deaths per million persons-WHO2012

We can learn a lot by looking at how we stay healthy. Many things can help lower the risk of ear infections. For example, vaccines like the influenza shot can help. Breastfeeding also provides protection for infants. Avoiding tobacco smoke is another way to keep ears healthy. If a child has a lot of pain, doctors may use medicine like paracetamol. Some children might even need small tubes placed in their ears. These tubes help the ear drain and prevent more infections.

Otitis Media
Otitis Media
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Otitis Media.png
Subtotal Perforation of the right...
File:Otitis media world map - DALY - WHO2004.svg
Otitis media world map - DALY - WHO2004.svg
File:Otitis media world map-Deaths per million persons-WHO2012.svg
Otitis media world map-Deaths per million...
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