Swimmer’s ear

Definition

Swimmer’s ear, or otitis externa, is an infection of the outer ear canal caused by bacteria. It often results from water remaining in the ear after swimming, which creates a moist environment conducive to bacterial growth.

5 Must Know Facts For Your Next Test

1. Common bacteria causing swimmer's ear include Pseudomonas aeruginosa and Staphylococcus aureus.
2. Symptoms typically include itching, redness, discomfort, and sometimes discharge from the ear.
3. Preventative measures include keeping ears dry and using earplugs while swimming.
4. Treatment usually involves antibiotic eardrops to combat the bacterial infection.
5. If left untreated, swimmer's ear can lead to more severe infections and complications.

Review Questions

Related terms

Otitis media: An infection of the middle ear, different from otitis externa which affects the outer ear.

Pseudomonas aeruginosa:

A type of bacteria commonly found in water that can cause swimmer's ear.

Staphylococcus aureus:

A common bacterium that can also cause skin infections and is one of the pathogens responsible for swimmer’s ear.