Otitis externa refers to inflammation of the external ear.
Epidemiology
It is quite a common condition and may affect up to 10% of people during their lifetime.
Pathology
It can present in several forms:
Etiology
There are several known risk factors which include 1:
- swimming
- a humid environment
- narrow ear canals
- hearing-aid use
- mechanical trauma
It may be associated with several micro-organisms. The commonest include
- Pseudomonas aeruginosa
- Staphylococcus aureus
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