Skip to content
My WebMD Sign In, Sign Up

Healthy Dogs

Font Size

Dog Ear Swelling: Causes and Treatment

From dog bites to ear mites, there's a lot that can cause ear swelling in your dog. 

To keep your canine companion healthy, it helps to know the signs of a dog's ear problems, what to do when they happen, and how you can prevent them.

Recommended Related to Dogs

Rabies in Dogs

Rabies is a virus that may affect the brain and spinal cord of all mammals, including dogs, cats and humans. Though preventable, there is good reason that the word “rabies” evokes fear in people. The disease has been reported in every state except Hawaii, and everywhere throughout the world except for Australia and Antarctica. Annually, rabies causes the deaths of more than 50,000 humans and millions of animals worldwide. Once symptoms appear, the disease results in fatality.

Read the Rabies in Dogs article > >

Common Causes and Treatments of Dog Ear Swelling

Swelling is just one sign of ear problems in dogs. Other symptoms include scratching or wiping the ear against things, head shaking or tilting, odor, discharge, redness, scabs or crust, balance problems, walking in circles, odd eye movements, and hair loss around the ear.  

The most common causes of ear swelling in dogs include: 

Ear mites. Microscopic parasites that feed on the wax and oils inside your dog's ear, mites are behind most ear problems in puppies and young dogs, though they can happen to any dog, regardless of age. 

A serious mite infestation can completely block your dog's ear canal with the coffee-grounds-like debris of the mites. Complications may include ear hematomas -- in which blood vessels rupture from intense scratching and head shaking -- or serious infection.  

To treat ear mites, your dog may need a gentle ear cleaning, prescription medication, or insecticidal eardrops. Since ear mites are contagious between cats and dogs, all the pets in your household should be treated. Follow your vet's instructions about how long to treat and when to recheck. 

Ear hematomas. These are firm, swollen masses on the inside of your dog's ear flap. They occur when a blood vessel within the ear flap ruptures and bleeding occurs between the tissue layers. Sometimes caused by head shaking or scratching because of ear mites or an infection, hematomas can also be the result something foreign stuck inside your dog's ear. 

Treatment for an ear hematoma includes a veterinary exam to find out the cause of the hematoma and draining of the blood to prevent ear deformity and scarring.  Surgery is usually necessary to prevent the ear flap from filling up with blood again.

Inner or outer ear infections. These can also cause ear swelling in dogs, as well as discharge, odor, and discomfort. Infections can be the result of a dog bite, a foreign object in your dog's ear, polyps, allergies, water in the ear, and other problems.  

Left untreated, an outer ear infection (otitis externa) can progress to an inner ear infection (otitis interna), which is painful enough to prevent a dog from willingly opening its mouth and may result in hearing loss or difficulties with balance. Treating ear infections may require antibiotics, flushing the ear, ear cleaning, or an ear-drying solution. If the problem is chronic, surgery could be necessary.  

Avoid the temptation to diagnose your dog's ear swelling yourself. Because the symptoms of one ear problem can sometimes mimic another, it's important to bring your dog to the veterinarian to get the correct diagnosis -- and the right treatment.

 

WebMD Veterinary Reference

Today on WebMD

boxer dog
Slideshow
dog on couch
Evaluator
 
bad dog
Slideshow
Sad dog and guacamole
Slideshow
 
Pit bull looking up
Article
Pets: Is My Dog Normal
Slideshow
 
Dog scratching behind ear
Slideshow
dog catching frisbee
Slideshow
 

Love your pets, hate your allergies?

Get tips for relief.

Loading ...

Sending your email...

This feature is temporarily unavailable. Please try again later.

Thanks!

Now check your email account on your mobile phone to download your new app.

Dog Breed RMQ
Quiz
puppy eating
Slideshow
 
pooldle
Slideshow
bulldog in party hat
Slideshow