What is otitis media?
Otitis media means “inflammation of the middle ear,” as a result of a middle ear infection. It can occur in one or both ears. Otitis media is the most frequent diagnosis for children who visit physicians for illness. It is also the most common cause of hearing loss in children. Although otitis media is most common in young children, it occasionally affects adults
What causes otitis media?
Blockage of the eustachian tube during a cold, allergy, or upper respiratory infection, and the presence of bacteria or viruses lead to a build-up of pus and mucus behind the eardrum. This infection is called acute otitis media. The build-up of pressurized pus in the middle ear causes pain, swelling, and redness. Since the eardrum cannot vibrate properly, hearing problems may occur. Sometimes the eardrum ruptures, and pus drains out of the ear. More commonly, however, the pus and mucus remain in the middle ear due to the swollen and inflamed eustachian tube. This is called middle ear effusion or serous otitis media. Often after the acute infection has passed, the effusion remains lasting for weeks, months, or even years. This condition allows frequent recurrences of the acute infection and may cause difficulty in hearing.