Ear Infections in Dogs: What Every Pet Owner Should Know

Ear infections are one of the most common reasons dogs visit the vet. They can be uncomfortable, painful, and frustrating for both pets and owners. The good news is that with early treatment and proper prevention, most ear infections resolve well and can often be prevented from recurring.

Here’s a practical FAQ guide to help you better understand ear infections in dogs.

What is an ear infection in dogs?

Most ear infections in dogs involve inflammation of the external ear canal. The medical term for this is otitis externa. Dogs have long, L-shaped ear canals, which makes them more prone to trapping moisture, debris, and microorganisms compared to humans.

If left untreated, infections can progress deeper into the middle or inner ear, leading to more serious complications.

What causes ear infections?

Ear infections are usually caused by an overgrowth of yeast or bacteria, but there is often an underlying trigger. Common causes include:

Allergies (food or environmental), moisture from swimming or bathing, excess wax production, ear mites (more common in puppies), hormonal imbalances, foreign bodies like grass awns, underlying skin disease.

Many dogs with recurring ear infections have allergies as the root cause.

What are the signs of an ear infection?

Common symptoms include:

Head shaking, scratching at the ears, redness inside the ear flap, swelling of the ear canal, discharge (brown, yellow, or black), bad odor from the ears, pain when the ears are touched.

In more advanced cases, you may notice balance issues, head tilt, or reduced hearing.

If your dog is showing any of these signs, early assessment is important.

Are certain dogs more prone to ear infections?

Yes. Dogs with floppy ears, narrow ear canals, or heavy hair growth inside the ears are at higher risk. Breeds commonly affected include retrievers, spaniels, poodles, and bulldogs.

Dogs with allergies are also significantly more prone to recurrent infections.

Can I treat my dog’s ear infection at home?

It’s important not to assume every ear issue is the same. Different infections require different medications. Some are yeast-dominant, some bacterial, and some mixed.

Using the wrong over-the-counter product can delay healing and worsen inflammation.

A proper ear exam and cytology allow us to determine the exact cause and choose the correct treatment.

How are ear infections treated?

Treatment depends on severity and cause, but may include:

Professional ear cleaning, topical ear medications (antibiotic, antifungal, anti-inflammatory), oral medications in more severe cases, addressing underlying allergies or hormonal conditions.

In chronic or severe cases, long-acting ear medications administered in clinic may be recommended.

How long do ear infections take to heal?

Mild infections may resolve within 1–2 weeks. More severe or chronic cases can take several weeks and may require rechecks to ensure the infection has fully cleared.

Stopping treatment too early is a common reason infections recur.

How can I prevent ear infections?

Prevention strategies include:

Routine ear checks at home, keeping ears dry after swimming or bathing, regular grooming if your dog has excess ear hair, using vet-recommended ear cleaners when appropriate, managing underlying allergies.

Not every dog needs routine ear cleaning. Over-cleaning can sometimes cause irritation, so it’s best to follow veterinary guidance.

When should I call the clinic?

You should contact us if your dog is shaking their head repeatedly, appears painful when the ears are touched, has discharge or odor from the ears, or has had multiple ear infections in the past year.

Early treatment is simpler, less expensive, and more comfortable for your pet.

Take Aways

Ear infections are common but treatable. The key is identifying the underlying cause and treating them properly the first time.

If you’re unsure whether your dog’s ears are healthy, we’re happy to take a look during your next visit — or book a dedicated ear exam if your pet is showing signs of discomfort.

Your pet’s comfort matters, and healthy ears are part of overall wellness.