Dog Head Shaking: Causes, When to Worry and What to Do

What it usually means

Dogs shake their heads to get rid of something that bothers an ear, whether that is water, debris, an itch or pain. When the shaking keeps happening, the ear canal is the usual source. Inflammation of the outer ear canal is called otitis externa, and it typically brings head shaking along with scratching, odor, discharge, redness and swelling. Ear infections are the classic example. They tend to have an underlying cause, such as allergies, mites or an object in the canal, and unless that cause is treated too, the problem often comes back.

Ear shape matters. Breeds with large, floppy or hairy ears, such as Cocker Spaniels, are more prone to infections, and drop-eared dogs like Labrador Retrievers and Golden Retrievers that swim often are prone to trapped water. Allergies are the most common trigger underneath.

Shaking can also cause harm of its own. Vigorous shaking can rupture small blood vessels in the ear flap, so blood collects between the skin and the cartilage. This is an aural hematoma, and it is very painful.

Common causes

What you can do at home

Take a gentle look, but do not dig. Check the ear flap and the opening of the canal for redness, discharge, debris, odor, swelling, or a visible seed or tick. A short video of the shaking helps your vet.

Resist the urge to treat it yourself. Do not put vinegar mixes, home remedies, old ear drops or over-the-counter wax removers into an inflamed ear unless your vet approves. Even products that suit healthy ears can irritate sore ones, and which medicines are safe depends on whether the eardrum is intact, something only a vet's ear exam can show. Skip cotton swabs, which push debris deeper.

To limit damage while you wait for the appointment, try to stop hard scratching and shaking. Ask your vet whether a cone or another option would help in the meantime. If the ear flap feels soft and puffy, call promptly.

After a swim or a bath, dry the ears gently and wipe the outer canal with a cotton ball.

What happens at the vet

Your vet will ask how long the shaking has gone on, whether one ear or both are affected, and about allergies, swimming and bathing. The ear is examined with an otoscope, and a painful or blocked ear may need sedation to see properly. A swab of the discharge is checked under a microscope for yeast, bacteria and mites, and the exam shows whether the eardrum is intact, which decides which medicines are safe.

Treatment targets both the infection and its cause. Ears are cleaned, sometimes under anesthesia, foreign bodies are removed, and medicated drops usually combine ingredients that tackle bacteria, yeast and inflammation. Deeper or long-running infections may also need oral medication. Keep treating until your vet confirms the infection has cleared. That can take weeks, or months for long-running cases, and usually involves rechecks along the way.

An ear hematoma generally needs a procedure to drain the blood and hold the flap together. Left alone, it can leave a thick, crumpled ear. If allergies keep bringing infections back, your vet may test for them and discuss longer-term options.

Prevention

Check your dog's ears regularly for changes in smell, color, moisture or temperature, and keep them dry, especially after swimming and bathing. If your dog is prone to infections, ask your vet for a cleaner and a schedule. Vets often start with frequent cleaning during treatment and then ease off to a maintenance routine of once or twice weekly, so stick to the plan rather than cleaning more often.

Keep up with the parasite control your vet recommends. If ear mites turn up, ask about treating the other pets in the home too, because mites pass easily between animals.

Allergies sit behind many repeat ear problems, so managing them is one of the best long-term protections. For a suspected food allergy, your vet may suggest a strict elimination diet trial.

Ask your groomer to keep the hair around the ear opening thinned and trimmed on floppy-eared dogs. Check with your vet before plucking hair from inside the canal.