What condition is characterized by a middle ear infection in both ears?

Bilateral otitis media is characterized by a middle ear infection that occurs in both ears simultaneously. This condition commonly develops as a complication of respiratory infections and can be associated with symptoms such as ear pain, difficulty hearing, and sometimes fever. The presence of infection in both ears can also indicate a more severe inflammatory response and may require different management considerations compared to unilateral cases.

In contrast, unilateral otitis media occurs in only one ear, which does not meet the criteria described in the question. Labyrinthitis refers to inflammation of the inner ear structures and is not related to the middle ear infections specifically. Eustachian tube dysfunction involves problems with the tube that connects the middle ear to the back of the throat, often contributing to the development of otitis media but is not itself a condition marked by infection in the middle ear. The clarity of bilateral involvement in the diagnosis is critical in guiding appropriate treatment and management strategies.