Ear Infections Middle ear (otitis media) infections are very common in young children. They include: Acute otitis media (AOM) is an inflammation caused by bacteria that travel to the middle ear from fluid trapped in the Eustachian tube. Children with AOM exhibit signs of an ear infection including pain, fever, and tugging at the ear. Otitis media with effusion (OME) refers to fluid that accumulates in the middle ear without obvious signs of infection. OME usually produces no symptoms, but some children will have difficulty hearing or complain of “plugged up” ears.