What are ears infections?

An ear infection is an infection of the ear. They can occur in the outer ear, middle ear, or inner ear.

Outer ear infections are also called swimmer's ear. They are usually caused by bacteria or fungi that enter the ear canal. Symptoms include pain, itching, swelling, and discharge from the ear.

Middle ear infections are also called otitis media. They are usually caused by bacteria or viruses that enter the middle ear through the Eustachian tube, a small tube that connects the middle ear to the back of the throat. Symptoms include ear pain, fever, headache, and hearing loss.

Inner ear infections are also called labyrinthitis. They are usually caused by viruses or bacteria that spread to the inner ear from the middle ear. Symptoms include dizziness, nausea, vomiting, and hearing loss.

Ear infections are common in children, but they can also occur in adults. They are usually treated with antibiotics, ear drops, or pain relievers.