Swimmer's ear is inflammation, irritation, or infection of the outer ear and ear canal. Chronic swimmer's ear occurs when the condition does not go away or comes back multiple times.

See also: Swimmer's ear - acute

Swimmer's ear (otitis externa) is fairly common. It consists of inflammation, irritation, or infection of the outer ear and ear canal. Swimming in polluted water is one way to contract swimmer's ear. Moisture predisposes the ear to infection from water-loving bacteria such as Pseudomonas. Other bacteria, or rarely, fungus, can also cause infection. Swimming is not the only cause, however -- the condition can be caused by scratching the ear or an object stuck in it.

Chronic swimmer's ear may result from inadequate treatment, or may suggest the presence of a disease in underlying bone, a complication called malignant otitis externa.

• Ear pain -- may worsen with pulling on the external ear
• Itching of the ear or ear canal
• Persistent drainage from the ear -- yellow, yellow-green, pus, or foul smelling
• Hearing loss

When the physician looks in the ear, it appears red and swollen, including the ear canal. The ear canal may appear eczema-like, with scaly shedding of skin. Touching or moving the outer ear increases the pain. It may be difficult for the physician to see the eardrum with an otoscope, or the eardrum may appear red.

The outermost part of the ear, the tragus, may ultimately become infected, and appear red and swollen.