What Your Pet’s Ears May Tell You About Their Skin and Overall Health
Ear problems rank among the most common reasons dogs visit the veterinarian. You may first notice your dog shaking their head, scratching an ear, rubbing their face along the carpet, or suddenly pulling away when you touch the side of their head. Sometimes an odor develops, or you notice redness, wax, discharge, or dark debris inside the ear.
We often call all of these problems an “ear infection,” but that description only tells us part of the story.
When I look at a pet with an ear problem, I don’t just want to know what is growing in the ear. I also want to know why the ear became unhealthy enough for the problem to develop in the first place.
That question becomes especially important when ear infections keep coming back.
Your Pet’s Ear Contains Skin
One of the first connections I want pet owners to understand involves the relationship between the ears and the skin.
The external ear canal contains skin. When inflammation affects the skin elsewhere on the body, it can also affect the skin lining the ears. Veterinarians call inflammation of the external ear canal otitis externa.
This inflammation may occur suddenly, or it may continue for months or even years. With recurring problems, simply treating the infection each time may not address everything contributing to the problem.
Bacteria and yeast commonly grow in inflamed ears, and identifying them helps us choose appropriate treatment. But finding yeast or bacteria still leaves us with another question:
Why did they overgrow?
Allergies may contribute to inflammation in some pets. Ear anatomy, moisture, wax, hair, foreign material, growths, and other underlying health concerns may also play a role. Sometimes more than one factor contributes at the same time.
This helps explain why an ear may improve with treatment and then flare again several weeks or months later.
The Pattern Gives Us Clues
Before I ever look down the ear canal, I want to know what you have noticed at home.
When did the problem start? Does your pet scratch or seem uncomfortable? Does one ear bother them or both? Did the problem appear suddenly? Does your dog also lick their feet, rub their face, scratch other parts of the body, or experience recurring skin problems?
Those details matter because different patterns can point us in different directions.
A sudden problem involving only one ear may make me wonder about something inside that ear, such as plant material, another foreign object, or a growth. Recurring problems involving both ears, particularly in a dog who also struggles with itchy skin, may lead us to investigate allergies or another underlying cause.
An older dog who suddenly develops problems in both ears without a previous history of itchy skin may send us looking in yet another direction.
This explains why your pet’s history matters so much. The ears don’t exist separately from the rest of the animal.
We Need to Look at More Than the Ear Canal
The visible ear flap, called the pinna, also deserves attention.
I look for redness, scaling, crusting, thickened skin, swelling, infection, and evidence that the pet has scratched or rubbed the area. Repeated head shaking can even cause blood to collect within the ear flap, creating a swollen area called an ear hematoma.
Interestingly, the ear flap itself can become inflamed or infected even when the deeper canal doesn’t show significant disease. That alone can cause a pet to scratch, rub, and shake their head.
Once again, observation helps us connect the dots.
What Does a Normal Ear Look Like?
A healthy ear canal generally looks light pink with a small amount of normal wax. The amount of hair varies among dogs and breeds.
What you see when you lift your dog’s ear, however, represents only the beginning of the ear canal.
A dog's ear canal travels downward and then turns before continuing toward the eardrum. In other words, you cannot simply look through the opening of the ear and see everything happening farther down the canal.
Your veterinarian uses an otoscope to follow that canal and examine areas you cannot see from the outside.
At the end of the external canal lies the tympanic membrane, or eardrum. A normal eardrum looks thin and somewhat translucent. Inflammation can change its appearance. It may look cloudy or bulging, develop more visible blood vessels, tear, or rupture.
Sometimes swelling, pain, or debris prevents us from seeing the eardrum during the first examination. In those cases, controlling some of the inflammation first, sedation, or a more detailed video examination may help us see what is really happening.
Why Does the Eardrum Matter?
The eardrum separates the external ear canal from the middle ear. Once disease extends into the middle ear, the problem becomes more complicated.
The middle ear contains tiny structures involved in hearing, and important nerves travel nearby. Disease in this area can occasionally cause changes involving the face or the eye on the affected side.
This gives us another reason to pay attention when an ear problem persists despite treatment or repeatedly returns.
Chronic Ear Problems Can Actually Change the Ear Canal
Repeated inflammation does more than make an ear uncomfortable.
Over time, chronic inflammation can cause physical changes within the ear canal. During an examination, I may gently feel the cartilage surrounding the canal to see whether it still feels flexible and to determine how painful the ear feels.
As chronic inflammation continues, the tissues can thicken and eventually become permanently hardened or calcified. Once those changes progress far enough, treating the ear becomes increasingly difficult. In severe cases, surgery to remove the diseased ear canal may eventually provide the best option for the animal.
That progression gives us a very good reason not to accept repeated ear infections as something a pet “just gets.”
Sometimes We Need a Better View
A regular handheld otoscope gives us a good look at many ears, but chronic or complicated cases sometimes require more.
Video otoscopy provides greater magnification and lets us examine the deeper canal and eardrum much more closely. It may reveal material deep within the canal, foreign objects, masses, subtle damage to the eardrum, or changes that remain difficult to see with a standard otoscope.
It also allows a veterinarian to flush and clean the deeper ear canal while watching exactly what happens.
I particularly like the educational value of this technology because pet owners can often see what we see. When you can actually look at the inside of your pet’s ear, the reason behind the treatment plan starts to make much more sense.
So Why Does My Dog Keep Getting Ear Infections?
This brings us back to the question we started with.
When an ear infection returns again and again, I don’t want to simply ask:
What can we put in the ear this time?
I want to ask:
Why does this ear keep becoming inflamed?
Perhaps an underlying allergy starts the inflammation. Then the altered environment inside the ear allows yeast or bacteria to multiply. Repeated inflammation may narrow and thicken the canal, trap additional moisture and debris, and make the next infection easier to develop.
Now we no longer see several unrelated ear infections.
We see a pattern.
And once we recognize the pattern, we can start looking for the factors that keep driving it.
What Can You Observe at Home?
You don't need medical training or an otoscope to contribute valuable information. You know your pet's normal behavior better than anyone.
Pay attention when something changes.
Maybe your dog shakes their head more frequently. Perhaps one ear suddenly develops an odor. You may notice scratching, redness, discharge, increased wax, tenderness, or rubbing along the furniture. Also notice what happens elsewhere on the body. Does your dog lick their feet? Rub their face? Scratch their belly or armpits? Do the ear problems seem to occur during certain seasons?
And notice whether the problem always involves the same ear or tends to affect both.
Those observations help create a much bigger picture.
The goal doesn't simply involve making the ear look better today. We want to understand what keeps pushing that ear away from health so we can make thoughtful decisions about what comes next.
That process starts with something very simple:
Observe what changed. Discover the patterns and connections. Then use what you learn to help your pet thrive.
Want to Learn How a Veterinarian Connects the Dots?
One symptom rarely tells the whole story. When I evaluate an animal, I look at the history, patterns, environment, nutrition, behavior, physical findings, and the other clues the animal gives us.
If you want to understand that process more deeply, visit my Video Library and watch:
How to Think Like a Veterinarian — Part 1
Start looking beyond the individual symptom and learn why observation and history give us such valuable clues.
Start looking beyond the individual symptom and learn why observation and history give us such valuable clues.
How to Think Like a Veterinarian — Part 2
Continue connecting those observations and learn how patterns help guide the questions we ask next.
Continue connecting those observations and learn how patterns help guide the questions we ask next.
Keep Learning With Me
If your pet struggles with recurring ear or skin problems, start keeping track of what you notice. When did the problem begin? What changed beforehand? Does it come and go? Does it follow a seasonal pattern? What other changes occur at the same time?
Bring those observations to your veterinarian. They may provide some of the most useful clues in understanding what happens beneath the symptom.
And if you enjoy learning how to recognize these connections before they become easy to overlook, join me for Furry Friend Friday Wellness Tips. We’ll continue exploring practical ways to understand what our animals communicate through their skin, ears, digestion, behavior, movement, and everyday patterns.
OBSERVE • DISCOVER • THRIVE
Educational Disclaimer
This article provides general educational information for pet owners and does not replace an examination, diagnosis, or individualized treatment plan from your veterinarian. Ear disease can involve infection, foreign material, allergies, masses, a damaged eardrum, middle-ear disease, or other medical conditions that require veterinary evaluation. Never place medications, essential oils, cleaners, or other products into a painful or abnormal ear without first knowing the condition of the ear canal and eardrum. If your pet shows significant pain, swelling, loss of balance, changes involving the face or eyes, sudden hearing changes, or persistent or recurring ear problems, contact your veterinarian promptly.
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