What is the medical term for an ear infection?

The medical term for an ear infection is otitis media, which specifically refers to inflammation or infection of the middle ear, often caused by bacteria or viruses. This condition commonly occurs following a respiratory infection, as the Eustachian tubes may become blocked, leading to fluid build-up behind the eardrum. It is most frequently seen in children but can also affect adults.

Otitis externa, also known as swimmer's ear, involves an infection of the outer ear canal and is distinct from otitis media in that it affects a different part of the ear. Tinnitus refers to the perception of noise or ringing in the ears and is not an infection, while earache is a symptom that can result from various ear issues, including otitis media, but is not the precise medical term for the infection itself.