10 Common Signs of Ear Infections in Dogs and Cats Every Pet Parent Should Know

Have you noticed your dog scratching its ears more often than usual? Or perhaps your cat has started shaking its head frequently or seems uncomfortable when you touch its ears?

Ear infections are among the most common health issues affecting dogs and cats. While they can start as a minor irritation, untreated ear infections may lead to significant discomfort, recurring problems, and even hearing complications in severe cases.

Recognizing the early signs can help pet parents seek timely veterinary care and keep their furry companions comfortable and healthy.

Why Are Healthy Ears Important for Pets?

Your pet's ears do much more than help them hear.

Healthy ears support

• Hearing and sound recognition
• Balance and coordination
• Communication and environmental awareness
• Overall comfort and well-being

Because the ear canal is warm and enclosed, it can create an environment where bacteria, yeast, and other microorganisms may thrive when conditions allow.

Maintaining good ear hygiene and recognizing early signs of infection can help keep your pet comfortable and healthy.

What Causes Ear Infections in Dogs and Cats?

Ear infections can develop for several reasons, including

• Excess ear wax buildup
• Moisture trapped after bathing or swimming
• Allergies
• Ear mites
• Bacterial infections
• Fungal or yeast overgrowth
• Foreign objects such as grass seeds
• Hormonal or skin-related disorders
• Poor ear hygiene

Some pets are also more prone to ear infections due to the shape of their ears, particularly breeds with long, floppy ears.

Common Signs Your Pet May Have an Ear Infection

Recognizing these early warning signs can help ensure prompt veterinary attention and appropriate treatment.

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10 Common Signs of Ear Infections in Dogs and Cats

• Frequent head shaking
• Excessive ear scratching
• Bad ear odour
• Redness or inflammation
• Excess ear wax or discharge
• Ear sensitivity or pain
• Head tilting
• Behavioural changes
• Loss of balance
• Recurring ear problems

Frequent Head Shaking

One of the earliest signs of an ear problem is repeated head shaking.

Pets often shake their heads to relieve irritation, itching, or discomfort inside the ear canal. If the behaviour persists, it may indicate an infection or inflammation that requires attention.

Excessive Ear Scratching

Dogs and cats may occasionally scratch their ears, but constant scratching is not normal.

Frequent scratching can indicate irritation within the ear canal and may eventually cause redness, skin damage, or secondary infections around the ears.

Unpleasant Ear Odour

Healthy ears generally have little to no noticeable smell.

A strong, foul, or musty odour coming from the ears may suggest bacterial or yeast overgrowth and should be evaluated by a veterinarian.

Redness and Inflammation

Healthy ears are usually pale pink and free from swelling.

If you notice redness, warmth, swelling, or irritation inside the ear flap or canal, your pet may be experiencing an inflammatory response associated with an ear infection.

Excess Ear Wax or Discharge

Changes in ear discharge can be an important warning sign.

You may notice

• Dark brown or black debris
• Yellow or green discharge
• Sticky buildup
• Excess wax accumulation

Any unusual discharge should be investigated by a veterinarian.

Ear Sensitivity or Pain

Pets with ear infections often become uncomfortable when their ears are touched.

They may

• Pull away
• Flinch
• Cry out
• Resist ear handling

Pain and sensitivity are important indicators that the ear may require medical attention.

Head Tilting

A persistent head tilt may indicate that the infection is affecting deeper structures within the ear.

Although not all head tilts are caused by ear infections, this symptom should always be assessed by a veterinarian.

Behavioural Changes

When pets are uncomfortable, their behaviour often changes.

Signs may include

• Irritability
• Restlessness
• Reduced activity
• Increased sleeping
• Reduced interaction with family members

Any sudden behavioural changes should be taken seriously.

Loss of Balance or Coordination

The inner ear plays an important role in maintaining balance.

In some cases, ear infections may lead to

• Stumbling
• Walking in circles
• Unsteady movements
• Loss of coordination

These symptoms require prompt veterinary evaluation.

Recurring Ear Problems

Repeated ear infections may indicate an underlying issue such as allergies, chronic skin disease, or anatomical predisposition.

If your pet experiences frequent ear infections, your veterinarian may recommend additional investigations to identify the root cause.

When Should You Contact a Veterinarian?

Seek veterinary attention if your pet

• Shows signs of ear pain or discomfort
• Has discharge, bleeding, or a strong odour from the ear
• Experiences loss of balance or coordination
• Develops a persistent head tilt
• Continues shaking or scratching its ears excessively
• Has recurring ear infections
• Shows symptoms that do not improve within a few days

A veterinarian can identify the underlying cause and recommend appropriate treatment.

Why Early Detection Matters

Ear infections rarely resolve on their own and may worsen if left untreated.

Early diagnosis can help

• Reduce discomfort and pain
• Prevent progression of infection
• Lower the risk of chronic ear disease
• Improve treatment outcomes
• Minimize the chances of recurring infections

The earlier an ear problem is identified, the sooner appropriate treatment and management can begin.

Supporting Healthy Ears in Dogs and Cats

Routine ear care plays an important role in maintaining ear health.

Veterinarians often recommend regular ear cleaning to help remove wax, dirt, and debris that may contribute to irritation and infection.

For example, Fresh Hug Ear Cleanser is a gentle ear-cleaning solution formulated for dogs and cats. It contains salicylic acid and antimicrobial ingredients that help remove excess wax and debris while supporting ear hygiene.

When used as directed and under veterinary guidance, regular ear cleaning may help maintain a clean and healthy ear canal and support overall ear wellness.

Which Pets May Benefit from Routine Ear Cleaning?

Regular ear care may be particularly beneficial for

• Dogs with floppy ears
• Pets that swim frequently
• Pets prone to wax buildup
• Dogs and cats with recurring ear issues
• Pets living in humid environments
• Breeds predisposed to ear infections

Your veterinarian can advise how often ear cleaning is appropriate for your pet.

How Can You Help Protect Your Pet's Ear Health?

Good ear health starts with preventive care.

5 Tips for Healthy Pet Ears

• Check ears regularly
• Dry ears after bathing
• Clean ears routinely
• Monitor for unusual odour
• Schedule veterinary checkups

Consistent ear care can help reduce the risk of common ear problems and support your pet's comfort.

Final Thoughts

Ear infections are common in dogs and cats, but they often begin with subtle symptoms that can be easy to miss.

Head shaking, scratching, unpleasant odour, redness, discharge, sensitivity, and behavioural changes may all indicate that your pet's ears need attention.

By recognizing these warning signs early and seeking veterinary advice when needed, pet parents can help prevent complications and support their pet's long-term ear health.

Combined with regular ear checks, good hygiene practices, and appropriate veterinary care, early detection remains one of the most effective ways to keep your pet happy, healthy, and comfortable.

Frequently Asked Questions

1. What are the first signs of an ear infection in dogs and cats?
Common early signs include head shaking, ear scratching, bad odour, redness, excess wax, and sensitivity around the ears.

2. Can ear infections go away on their own?
Some mild irritation may improve, but true ear infections typically require veterinary diagnosis and treatment. Delaying treatment may allow the condition to worsen.

3. Why does my dog's ear smell bad?
A strong or unpleasant odour may indicate bacterial or yeast overgrowth, excess wax buildup, or an ear infection.

4. How often should I clean my pet's ears?
The ideal frequency depends on your pet's breed, lifestyle, and ear health. Your veterinarian can recommend an appropriate ear-cleaning routine.

5. Can regular ear cleaning help prevent infections?
Routine ear cleaning may help remove wax, dirt, and debris that can contribute to irritation and support overall ear hygiene when performed correctly.

Explore Fresh Hug Ear Cleanser, a gentle ear-cleaning solution for dogs and cats designed to help remove excess wax, neutralize odour, and maintain a clean, healthy ear canal.

References

Nuttall T. (2023). Managing recurrent otitis externa in dogs: what have we learned and what can we do better?. Journal of the American Veterinary Medical Association, 261(S1), S10–S22. https://doi.org/10.2460/javma.23.01.0002

Hoff, S. (2026, April 7). Otitis externa in animals. Merck Veterinary Manual. https://www.merckvetmanual.com/ear-disorders/otitis-externa/otitis-externa-in-animals

Cole, L. K., Kwochka (2003). Evaluation of an ear cleanser for the treatment of infectious otitis externa in dogs. Veterinary therapeutics : research in applied veterinary medicine, 4(1), 12–23. https://pubmed.ncbi.nlm.nih.gov/12756632/