Why Is My Dog Shaking Their Head?

A dog shaking their head once or twice is usually normal—especially after waking up, bathing, or getting water in their ears. But frequent or intense head shaking often means something is irritating or hurting the ear.

Because ear problems can worsen quickly, persistent head shaking deserves attention. Here’s what may be causing it, what you can safely do at home, and when your dog needs veterinary care.

Common Causes of Head Shaking in Dogs

1. Ear infection

Ear infections, also called otitis externa, are among the most common reasons dogs shake their heads. They may also scratch their ears, rub their face on furniture, or develop redness, swelling, odor, or discharge.

Bacteria and yeast can multiply when the ear canal becomes warm, moist, inflamed, or blocked. A veterinarian must identify the specific infection because treatment varies. (Merck Veterinary Manual)

2. Allergies

Environmental, food, and flea allergies can inflame the skin inside and around the ears. Dogs with allergies may shake their heads repeatedly, even when no infection is present.

Look for other allergy signs, including:

• Itchy paws or skin
• Redness between the toes
• Recurrent ear problems
• Face rubbing
• Hair loss or hot spots

Allergies can also weaken the skin barrier, allowing secondary yeast or bacterial infections to develop. (VCA Animal Hospitals)

3. Water or excess moisture

Swimming and bathing can leave moisture trapped in the ear canal. The warm, damp environment may encourage yeast and bacteria to grow, particularly in dogs with floppy ears or narrow ear canals. (Cornell University College of Veterinary Medicine)

A few head shakes after getting wet may be harmless. Continued shaking, odor, redness, or discomfort is not.

4. Foreign objects

Grass seeds, foxtails, dirt, plant material, or other debris can become lodged in the ear. This often causes sudden, intense head shaking—frequently affecting only one ear.

Do not attempt to dig out a deeply lodged object. Doing so can push it farther into the canal or damage the eardrum.

5. Ear mites and other parasites

Ear mites are more common in cats but can affect dogs, particularly puppies or pets exposed to infected animals. They may cause severe itching, scratching, head shaking, and dark, crumbly debris.

Other parasites and skin conditions can also irritate the ear. A veterinarian can examine an ear sample under a microscope to determine the cause.

6. Earwax or skin buildup

Some dogs naturally produce more wax or have excessive hair around the ear canal. Wax, dead skin, or debris can trap moisture and cause irritation.

However, over-cleaning or using unsuitable products can inflame the ear as well. Healthy ears generally need cleaning only when dirt or debris is visible, unless your veterinarian recommends a specific schedule.

7. Aural hematoma

Repeated shaking or scratching can rupture small blood vessels in the ear flap, creating a pocket of blood called an aural hematoma. The ear may suddenly appear swollen, soft, thickened, or puffy.

A hematoma can be painful and may permanently deform the ear if left untreated. Contact your veterinarian if you notice swelling of the ear flap. (Cornell University College of Veterinary Medicine)

8. Middle- or inner-ear disease

An infection can extend deeper into the middle or inner ear. These conditions may cause more serious signs, including:

• Head tilt
• Loss of balance
• Falling or circling
• Nausea or vomiting
• Unusual eye movements
• Hearing loss
• Difficulty opening the mouth
• Facial drooping or inability to blink

Inner-ear disease can affect the vestibular system, which controls balance. Prompt treatment improves the chance of recovery. (Merck Veterinary Manual)

9. Pain or neurological problems

Less commonly, head shaking may relate to pain in the jaw, neck, mouth, or nervous system. Sudden head movements accompanied by weakness, tremors, seizures, confusion, or coordination problems require urgent veterinary assessment.

What Should I Do If My Dog Keeps Shaking Their Head?

Check the ears gently

In good lighting, look at the visible part of each ear. Note any:

• Redness or swelling
• Unusual odor
• Discharge
• Excess wax
• Scabs or sores
• Swelling of the ear flap
• Foreign material

Do not force your dog’s ear open or continue if they appear painful.

Keep the ears dry

After swimming or bathing, gently dry the outer ear with a clean towel. Avoid inserting anything into the ear canal.

Use only veterinarian-approved cleaners

If your veterinarian has recommended an ear-cleaning solution, follow the instructions carefully. A safe general technique is to apply the product as directed, massage the base of the ear gently, and wipe away loosened debris from the visible outer area.

Avoid:

• Cotton swabs
• Alcohol
• Hydrogen peroxide
• Vinegar mixtures
• Essential oils
• Human ear drops
• Leftover prescription medication

Cornell advises avoiding alcohol and hydrogen peroxide because they may irritate inflamed ears. Cotton swabs can also push debris deeper into the canal. (Cornell University College of Veterinary Medicine)

Arrange a veterinary examination

If the shaking continues, your dog should be examined. A veterinarian may use an otoscope to inspect the ear canal and eardrum, then examine a sample of discharge for yeast, bacteria, or parasites.

Treatment may include prescription ear medication, pain relief, parasite control, oral medication, allergy management, or removal of a foreign object. Treating only the visible infection may not prevent recurrence if allergies, moisture, anatomy, or another underlying problem remains.

When Is Head Shaking an Emergency?

Seek urgent veterinary care if your dog has persistent head shaking along with:

• A sudden head tilt
• Trouble standing or walking
• Falling, circling, or severe loss of balance
• Rapid, involuntary eye movements
• Repeated vomiting
• Seizures or collapse
• Facial drooping or inability to blink
• Severe pain or crying
• Heavy bleeding
• A rapidly swelling ear flap
• Extreme lethargy, fever, or loss of appetite

Balance problems and abnormal eye movements can indicate inner-ear or neurological disease. (VCA Animal Hospitals)

How to Help Prevent Ear Problems

Prevention depends on your dog’s individual risk factors, but these habits can help:

• Dry the outer ears after swimming or bathing.
• Check the ears regularly for odor, redness, wax, or discharge.
• Use parasite prevention recommended by your veterinarian.
• Manage allergies rather than treating repeated infections alone.
• Clean only as often as your veterinarian advises.
• Never insert objects deep into the ear canal.
• Schedule a checkup when head shaking becomes frequent or recurrent.

Floppy ears, narrow canals, heavy ear hair, allergies, and frequent swimming can increase the risk of ear disease. (Merck Veterinary Manual)

The Bottom Line

Occasional head shaking is normal. Frequent, forceful, or sudden head shaking usually signals irritation, itching, pain, or an ear problem that needs attention.

Check your dog’s ears gently, keep them dry, avoid home remedies and human medications, and contact your veterinarian if the behavior persists. Early care can relieve discomfort, prevent ear damage, and reduce the risk of deeper infection.

At Dono, we believe informed care is one of the most meaningful ways to show your dog love. When in doubt, trust your dog’s behavior—and speak with your veterinarian.

This article is for general education and does not replace veterinary diagnosis or treatment. — Dono