The most common ear infection is the middle ear infection, referred to medically as acute otitis media. which refers to a sudden infection in the middle ear. Although less common, ear infections can also occur in the inner ear or outer ear.
Middle ear infection (acute otitis media)
The middle ear is the area behind the eardrum. A middle ear infection often involves a buildup of fluid and mucus behind the eardrum. Another condition that affects the middle ear is otitis media with effusion, which refers to fluid buildup in the middle ear without an infection. Otitis media with effusion can result from a middle ear infection if fluid lingers after the infection. Acute otitis media often only lasts a few days.
Inner ear infection (labyrinthitis)
The inner ear is the area including the cochlea. The cochlea, along with the vestibular system, are responsible for balance. Therefore, an inner ear infection can cause issues relating to balance such as vertigo or trouble balancing. Inner ear infections can last months.
Outer ear infection (otitis externa)
Outer ear infections can last for weeks. Sometimes referred to as swimmer’s ear, this condition is often caused by water remaining in the ear. The outer ear canal is the area that runs from the eardrum to the side of the head.
