Apr 23, 2025 · Causes A bacterium or virus in the middle ear causes an ear infection. This infection often comes from another illness, such as a cold, flu or allergy. These can cause the …

Apr 15, 2025 · Causes Swimmer's ear is an infection that's usually caused by bacteria. It's less common for a fungus or virus to cause swimmer's ear.

Apr 24, 2025 · The diagnosis of "ear infection" is generally shorthand for acute otitis media. Your doctor likely makes this diagnosis if he or she sees signs of fluid in the middle ear, if there are …

Sep 5, 2025 · A small number of people might get repeated or ongoing, called chronic, infections if the hole doesn't heal. This small group might have ongoing fluid leaks from the ear and …

Dec 6, 2023 · A common cause of ear pain in children is an ear infection, or otitis media. Children are more likely than adults to get ear infections.

Apr 8, 2025 · Viruses, bacteria, fungi and parasites all can cause infections. Find out more about how to prevent and treat these conditions.

Nov 30, 2022 · Your ear canals can become blocked with a buildup of fluid (ear infection), earwax, dirt or other foreign materials. A blockage can change the pressure in your ear, causing tinnitus.

Jun 18, 2020 · This inflammatory disorder, probably caused by a virus, can affect the nerves in the balance portion of your inner ear. Symptoms are often severe and persistent, and include …

Aug 29, 2023 · The common cold is the usual cause of acute sinusitis. Most often, the condition clears up within a week to 10 days unless there's also an infection caused by bacteria, called a …

Dec 16, 2025 · Learn about the symptoms, causes and treatment of these potentially lethal infections.