Otitis externa circumscripta is a medical term used to describe a localized form of external otitis, commonly known as swimmer's ear. It refers to the inflammation and infection of the external ear canal, specifically in a confined or limited area.
External otitis is typically caused by bacterial or fungal infection, often due to prolonged exposure to moisture in the ear canal. Otitis externa circumscripta, in particular, presents with symptoms such as localized pain, redness, swelling, and tenderness within the affected area of the ear canal.
This condition can occur in individuals of all ages, but is more prevalent in children and young adults. Risk factors include swimming in contaminated waters, using in-ear headphones or hearing aids, and having anatomical abnormalities, such as narrow ear canals or excessive wax production.
To diagnose otitis externa circumscripta, a healthcare professional will typically conduct a physical examination of the ear, checking for signs of infection and inflammation. Treatment usually involves cleaning the affected area, prescribing antibiotic or antifungal ear drops, and providing pain relief measures. In severe or recurrent cases, oral antibiotics or steroids may be recommended.
Prevention of otitis externa circumscripta involves keeping the ears clean and dry, avoiding the use of cotton swabs or other objects that may damage the ear canal, wearing earplugs while swimming, and maintaining good ear hygiene practices.
