Ear Infections in Pets: Why We See More of Them in Warmer Weather
by Berwick Vet | Feb 3, 2026

Ear infections are one of the most common (and uncomfortable) conditions we see in dogs — and yes, cats too. While they can happen at any time of year, we often see an increase in ear infections during warmer months, especially in pets who love swimming or spending time outdoors.

Understanding why ear infections happen, what signs to look out for, and when to seek veterinary care can help keep your pet comfortable and prevent minor issues from turning into painful, ongoing problems.

Why Are Ear Infections More Common in Warm Weather?

Warm weather creates the perfect environment for ear infections to develop. Heat and moisture allow bacteria and yeast — which are normally present in small amounts — to overgrow inside the ear canal.

Common summer triggers include:

Swimming or frequent bathing, where moisture becomes trapped in the ear
Humidity and heat, which promote bacterial and yeast growth
Floppy ears or hairy ear canals, which reduce airflow
Underlying allergies, which can flare seasonally
Dogs that love the beach, lake or backyard hose are particularly prone, but any pet can be affected.

Signs Your Pet May Have an Ear Infection

Ear infections are uncomfortable and often itchy or painful. Common signs include:

Head shaking or tilting
Scratching or rubbing at the ears
Redness or swelling of the ear flap
Unpleasant smell coming from the ear
Discharge (brown, yellow, or black)
Sensitivity when the ear is touched
In cats, signs can be more subtle — scratching, crusting around the ears, or changes in behaviour may be the first clue.

Why Early Treatment Matters

Left untreated, ear infections can become more severe and harder to manage. Chronic infections may lead to:

Ongoing pain and irritation
Thickening and narrowing of the ear canal
Ruptured eardrums
Recurrent infections that require long-term management
Early treatment is usually simpler, more effective, and more comfortable for your pet.

Can I Treat My Pet’s Ear Infection at Home?

While it’s tempting to try home remedies or leftover ear drops, not all ear infections are the same. Some are caused by bacteria, others by yeast, parasites, or underlying allergies — and using the wrong treatment can make things worse.

A proper ear examination allows us to:

Identify the cause of the infection
Check the eardrum is intact
Prescribe the correct treatment
Address any underlying issues contributing to recurrence
How Can I Help Prevent Ear Infections?

While not all ear infections are preventable, these steps can help reduce risk:

Gently dry ears after swimming or bathing
Check ears regularly for redness or smell
Only use ear cleaners recommended by your vet
Avoid over-cleaning (this can irritate the ear)
Seek early advice if you notice changes
If your pet is prone to recurring ear infections, we can help create a tailored prevention plan.

When Should I Book a Vet Visit?

If your pet is showing signs of discomfort, head shaking, or ear discharge, it’s best to book an appointment sooner rather than later. Ear infections are uncomfortable — and your pet will feel much better once treatment starts.

If you’re unsure whether your pet’s ears are normal, we’re always happy to check.

Concerned about your pet’s ears?

Contact our team to book an appointment or ask for advice — we’re here to help keep your pets comfortable and healthy