What is otitis externa commonly known as?

Otitis externa is commonly referred to as Swimmer's ear. This condition primarily involves inflammation of the outer ear canal, which can occur due to water exposure, resulting in an environment conducive to bacterial or fungal growth. The name "Swimmer's ear" reflects the common occurrence of the condition among individuals who swim frequently, as moisture can lead to irritation and infection.

The condition is distinct from middle ear infections, which affect the middle ear behind the eardrum, and are more prevalent in children. Knee bursitis refers to inflammation of the bursa in the knee and is unrelated to ear conditions. Inner ear infections affect the structures responsible for balance and hearing, quite different from the outer ear inflammation seen in otitis externa. Understanding these distinctions helps clarify why otitis externa is specifically termed Swimmer's ear.