My dog tilts its head after swimming, should I worry?

Water sitting in the outer ear canal right after a swim can feel uncomfortable in a mild, temporary way, and a quick head tilt or shake as your dog works to clear it is a completely ordinary response, similar to the sensation of water in your own ear after a shower.

A head tilt that continues well past drying time, say an hour or more after the swim, especially if it is consistently favoring one side over the other, suggests something more than just leftover water, potentially irritation building from the moisture.

Scratching at the ear repeatedly, whining when the ear is touched, or any wobbliness or loss of balance alongside a persistent tilt are signs that go beyond simple water discomfort and warrant a vet visit rather than waiting to see if it resolves on its own.

During the first hour after a swim, if your dog is tilting its head but otherwise acting completely normal, gently drying the outer ear with a towel and keeping your dog calm and resting rather than immediately jumping back into more water gives the ear the best chance to settle on its own before you need to decide whether a vet visit is warranted.

Comparing this swim related tilt to any previous times your dog has tilted its head after a bath or a particularly vigorous shake can also be informative, since a dog that shows the same brief pattern consistently across different wet activities is likely just clearing water each time.