Swimmer’s ear, or otitis externa, is an infection in the outer ear canal caused by a build-up of lingering bacteria. This bacteria is brought on by water that remains in your ear for an extended amount of time, creating an overly moist environment.

While most of us know that swimmer’s ear often derives from a day at the pool, it’s important to note that the painful ear condition can happen on dry land, too. In fact, swimmer’s ear is responsible for nearly 2.4 million healthcare visits in the United States each year.

That being said, it’s important to be able to recognize signs of the infection so you can prevent any further build-up of bacteria within your ear. If left untreated, swimmer’s ear can result in an inflamed ear canal and even hearing loss, making it important to keep an eye out for the following symptoms…