Ear Hematomas & Ear Infections in Dogs: Why Clean Ears Matter

Ear Hematomas & Ear Infections in Dogs: Why Clean Ears Matter

If you’ve ever seen a dog suddenly develop a swollen, puffy ear flap or start shaking their head nonstop, you know how fast ear problems can escalate. Two common issues we see in dogs are ear infections and ear hematomas. The good news: many cases start with irritation and moisture in the ear canal—things you can often reduce with consistent ear care.

What is an ear hematoma?

An ear hematoma (also called an aural hematoma) happens when blood collects between the skin and cartilage of the ear flap (pinna). It often looks like a soft balloon or thick swelling on the ear. Hematomas are usually caused by trauma from head shaking or scratching—often triggered by an underlying ear infection, allergies, ear mites, or a foreign body.

What is an ear infection?

Ear infections (otitis) can involve bacteria, yeast, or both. They’re common in dogs with floppy ears, dogs that swim frequently, and dogs with allergies. Once the ear canal becomes warm and moist, organisms can overgrow quickly.

Signs to watch for

• Head shaking or ear scratching

• Redness, swelling, or heat in/around the ear

• Odor (often “yeasty” or sour)

• Dark discharge or excessive wax

• Pain when the ear is touched

• Ear flap suddenly looks puffy or “filled” (possible hematoma)

Why clean ears help prevent problems

Regular ear cleaning helps remove excess wax, debris, and moisture—especially after baths, swimming, or heavy play. Keeping the ear canal dry and clean reduces the chance of yeast/bacteria overgrowth, which reduces itching and head shaking. Less irritation means less trauma to the ear flap—and that lowers the risk of an ear hematoma.

A simple ear-cleaning routine (general guidance)

• Use a vet-approved ear cleaner (avoid hydrogen peroxide or alcohol unless your vet directs you).

• Fill the ear canal with cleaner, gently massage the base of the ear for 20–30 seconds.

• Let your dog shake their head, then wipe the visible part of the ear with cotton or gauze.

• Never push cotton swabs down into the ear canal.

• If your dog swims or gets frequent baths, ask your vet how often to clean (many dogs do well weekly or as-needed).

When to call your vet

If you notice significant pain, a strong odor, thick discharge, persistent head shaking, or any sudden swelling of the ear flap, it’s time for a veterinary exam. Ear infections often need prescription medication, and hematomas may require drainage or surgery—especially if they’re large or keep refilling.

This post is for general educational purposes and isn’t a substitute for veterinary diagnosis or treatment.

Want more Boerboel health and care tips? Follow along—our goal is to help every dog in the Freedom family thrive.