Primary Navigation for the CDC Website
CDC en Espańol

"Swimmer's Ear" Otitis Externa

What is Swimmer’s Ear?
lots of kids in wading pool

Swimmer’s Ear (ear ache) is an infection of the ear and/or outer ear canal. It can cause the ear to itch or become red and inflamed so that head movement or touching of the ear is very painful. There may also be pus that drains from the ear.

What causes Swimmer’s Ear?

Swimmer's Ear is often caused by an infection with a germ called Pseudomonas aeruginosa. This germ is common in the environment (soil, water) and is microscopic so that it can’t be seen with the naked eye. Although all age groups are affected by Swimmer’s Ear, it is more common in children and young adults and can be extremely painful.

How is Swimmer’s Ear spread?

Getting contaminated water in the ear can lead to Swimmer’s Ear. Swimmer’s Ear can occur within a few days of getting contaminated water or placing contaminated objects in the ear.

Is there a difference between a childhood middle ear infection and Swimmer’s Ear?

Yes. Swimmer’s Ear is not the same as the common childhood middle ear infection. If you can wiggle the outer ear without pain or discomfort then your ear infection is probably not Swimmer’s Ear.

Can Swimmer’s Ear be prevented?

Yes. Here are four Healthy Swimming tips for protection against Swimmer’s Ear:

  1. Dry your ears after swimming. If it is difficult to get water out of your ear, apply a few drops of an alcohol-based ear product into the ear. Ask a pharmacist at your local drug store for this product.

  2. Avoid putting objects in the ear (e.g., fingers or cotton swabs) that might scratch the wax layer or ear canal and provide a site that can become infected.

  3. Ask your pool manager about the disinfectant (e.g., chlorine or bromine) and pH testing program at your pool. Pools and hot tubs with good disinfectant and pH control are less likely to spread germs. Are disinfectant and pH levels checked at least twice per day?

  4. Pay attention to signage and avoid swimming in locations that have been closed because of pollution.

If you think you have Swimmer’s Ear, consult your healthcare provider. Swimmer’s Ear can be treated with antibiotic ear drops.