Vet Blog

04/13/09

Why is my Dog’s Ear Swollen?
Dr. Eric Barchas, DVM

My retired seeing-eye Golden Retriever, Age 11 has
a painful swelling in his right ear flap that
measures about 3″ x 3″. I don’t know if he
banged it on something, had an insect bite, or
what. . . I clean his inner ears with a solution I
got from my vet to deal with the brownish soil
that irritates him. Don’t know if this is a
related issue or not–thought I’d pass it on
anyway. Ideas??

Gratefully,

Margot
Vancouver BC/now Duncan BC, Canada

I suspect that your dog is suffering from an aural hematoma.

Aural hematomas occur when blood accumulates under the skin of the external ear. They appear as swellings on the outer ear. Aural hematomas are most common in dogs with prominent, loose external ears (that is to say, floppy ear flaps). However, they also occur in cats and dogs with small, perky ears.

The most common cause of aural hematomas is head shaking. And, the most common cause of head shaking is ear infections. The brown debris in your dog’s ears may be related to chronic irritation of the ears, which may have caused head shaking and therefore may be linked to the hematoma.

There are several ways to treat aural hematomas. Common options include draining the hematoma with a syringe, placing an indwelling drain (called a cannula) into the area, or performing a surgery in which the ear skin of the ear is sutured into the proper position. Some veterinarians advocate treating with antibiotics and oral cortisone as a first step.

I advocate trying less invasive options before resorting to surgery. And, no matter what, I recommend addressing the underlying cause of the hematoma. If you don’t, the problem is likely to recur.

Your dog will need to see a vet to confirm that the swelling is a hematoma. You can discuss treatment options and prevention of further problems during the visit.

Photo: Nala recovers from an aural hematoma.

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04/07/09

Is it Necessary to Pluck my Dog’s Ears?
Dr. Eric Barchas, DVM

When grooming a dog. Should you pluck the hair,
out of the ears of a dog, just because????

Valerie
Farmington Hills, MI

Excessive hair in dogs’ ears can sometimes trap moisture in the ear canal. This moisture can lead to ear infections as naturally occurring bacteria and yeast proliferate exuberantly.

Dogs that suffer from chronic ear infections may benefit from regular ear plucking.

However, I generally don’t recommend routine ear plucking in dogs that don’t have problems with ear infections. Plucking the ears can be painful and unpleasant for dogs. It also can lead to irritation of the ears, which may trigger the very ear infections that plucking is supposed to prevent.

I recommend that regular ear plucking be reserved for dogs with histories of recurrent ear problems.

Photo: Roxanne’s ear looks fine.

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03/19/09

Why do Dogs Lose Their Hearing?
Dr. Eric Barchas, DVM

953638_1233851831.jpgWe have a Shepherd/Boxer mix named Sophie. She is
10 years old. She seems to have lost her hearing
over the last six months. Is it her age or could
there be another cause?

Janis and Charles
WILLIAMSPORT, PA

Regardless of whether they listen to too much heavy metal music as puppies, dogs are prone to hearing loss when they are elderly.

Hearing and visual impairment are common among older dogs, cats and humans. Hearing loss usually is related to degeneration of internal structure within the ear. Similarly, poor eyesight generally is caused by changes inside of the eyeball.

Certainly other causes of hearing loss are possible. Ear infections, wax plugs in the ear canals, and polyps or tumors growing in the ears can cause decreased auditory acuity. A veterinarian should take a look at Sophie to make sure none of these problems is playing a role in the situation.

There may not be much that can be done to restore Sophie’s hearing. However, there is good news. Hearing loss rarely interferes with quality of life–even though dogs generally don’t wear hearing aids.

Photo: Sophie shows off the ears in question.

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10/17/08

Do Pets Have Tickle Spots?
Dr. Eric Barchas, DVM

szusza_pekingese.jpgMy Pekingese loves to have his belly scratched. We
often find “tickle spots” as we scratch him
(he’ll make a silly face and thump his hind leg).

He seems to enjoy being tickled–he’ll
sometimes move so we’ll hit a tickle spot. Some
days he’ll be more ticklish than other days. I
don’t remember my Dachshund ever having a
ticklish tummy.

What’s going on? Are they really ticklish spots,
why do they vary, and are they normal?

Thanks!

Jen
San Francisco / East Bay, CA

I have known plenty of dogs (and a few cats) who thumped their hind legs when they were scratched in the right place. There is no doubt that they enjoy being scratched in these places. Animals instinctively try to escape from unpleasant stimuli. I have never seen a pet try to get away from someone who was scratching the right spot. I suspect that they enjoy this activity in the same way that we enjoy having unreachable areas of our backs scratched.

I do not know the neurological mechanism that causes pets to thump their hind legs when they are scratched. However, I do know that in most cases it is harmless.

Unfortunately, there are exceptions. Animals suffering from skin conditions that cause itching may suddenly develop “tickle spots” in troubled areas. For instance, flea allergies often cause sensitization of the skin near the tail. Dogs with flea allergies are more likely to thump their hind legs when scratched at the base of the tail. Cats may lick the air or gnaw on their front legs or chest (although plenty of perfectly healthy cats do this too).

If your pet suddenly develops a sensitive area, I’d recommend a checkup. If he does not seem excessively itchy, and if his “tickle spots” have been consistent over time, I’ll bet nothing’s wrong.

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