
Dog Ear Mites: Symptoms, Diagnosis, Treatment & Prevention
What Are Dog Ear Mites? Understanding This Common Pet Parasite
If you've noticed your dog shaking their head or scratching their ears excessively, you might wonder if they have an ear infection or allergies. However, ear mites (scientifically known as Otodectes cynotis) could be the real culprit.

Although ear mites are relatively uncommon in dogs compared to cats, they remain an important parasite that pet owners should be aware of. These tiny invaders are most frequently found in puppies and dogs who spend extended time outdoors.
Ear mites are microscopic parasites that live in your dog's ear canals, causing intense itching, pain, and abnormal discharge. If left untreated, they can lead to secondary infections or even hearing loss.
Action Required: While ear mites don't constitute a medical emergency, they cause significant discomfort and should be treated promptly. If you suspect your dog has ear mites, schedule a veterinary appointment immediately for proper diagnosis and treatment.
Dog Ear Mite Symptoms: How to Identify This Ear Parasite
Dogs with ear mites typically show these symptoms:
- Frequent head shaking
- Red, itchy ears
- Unpleasant ear odor
- Thick brown or black ear discharge
- Painful, sensitive ears
- Head tilt
- Hair loss around ears and eyes
- Decreased appetite
- Lethargy
Causes of Dog Ear Mites: Understanding Transmission
Ear mites primarily spread through close contact with another infected animal, such as another dog or cat.
Due to their highly contagious nature, if one pet in your household becomes infected, all pets likely will. Dogs can also acquire ear mites from the environment or from contaminated bedding or toys.
Dogs of all ages can be affected by ear mites.
Dogs not receiving monthly flea, tick, and heartworm preventatives face a higher risk of ear mite infection due to lack of parasite protection.
How Veterinarians Diagnose Dog Ear Mites
A veterinarian will first examine your dog with special attention to their ears. An otoscope is used to investigate your dog's ear canals for abnormal discharge or inflammation.
The vet will ask whether your dog receives monthly preventatives, when symptoms began, and if other pets live in your household.
If ear mites are suspected, diagnostic testing follows.
Ear cytology is the preferred diagnostic test for dog ear mites.
During this procedure, the veterinarian uses a cotton swab to gently collect ear canal debris.
This debris is mixed with mineral oil on a glass slide and examined under a microscope to identify ear mites or their eggs.
Another sample may be stained and microscopically examined for yeast or bacteria.
These microorganisms often cause secondary ear infections, which are very common in dogs with ear mites.
Effective Treatment Options for Dog Ear Mites
Treating dog ear mites requires thorough ear cleaning and medication.
1. Ear Cleaning
First, the dog's ears are cleaned with an ear cleanser.
Common cleansers include:
- Epi-Otic® Advanced (general cleaning)
- TrizULTRA™+ Keto Flush (for secondary bacterial infections)
Ear cleansers remove debris to enhance medication effectiveness and are used daily until both mites and infection resolve.
2. Topical and Oral Medication
Flea, tick, and heartworm preventatives are the primary treatments for ear mites. While not specifically labeled for ear mites, these products are highly effective.
- Topical medications: Applied to the dog's skin between shoulder blades
- Oral medications: Administered by mouth
Typically, a single treatment effectively eliminates ear mites. Common preventatives include:
- Bravecto®
- Advantage Multi™
3. Addressing Secondary Infections
If the dog also has a bacterial or yeast infection, topical ointments like Animax® will be prescribed.
These are typically applied to the ear canals twice daily for a week after cleaning. Dogs experiencing significant pain or itching may benefit from topical or oral steroids like prednisone.
Important Note: Due to the highly contagious nature of ear mites, all pets in your household should receive treatment if one is diagnosed.
Recovery and Management of Dog Ear Mites
If ear cleanings and medications are administered consistently as prescribed, a single treatment course is usually sufficient.
Dogs typically show improvement within a day or two after starting treatment. However, complete elimination of ear mites from the dog's ear canals may take up to 30 days.
After treatment, pet owners should return to the veterinarian for a follow-up ear cytology to confirm the ear mites are gone.
If symptoms persist or ear cytology still shows mites or infection, additional treatment may be prescribed.
How to Prevent Dog Ear Mites
- Year-round flea, tick, and heartworm preventatives will protect your dog from ear mites
- Weekly ear cleaning removes debris and reduces infection risk
Frequently Asked Questions About Dog Ear Mites
Can ear mites infest your house?
Ear mites can be present throughout your home, especially in bedding or toys that infected animals have contacted.
However, they don't survive long in the environment, so proper cleaning and disinfection should eliminate them quickly.
Can humans get ear mites from dogs?
It's extremely unlikely for humans to contract ear mites from dogs.
However, if an ear mite from a dog jumps onto and bites a person, it may cause itching or a skin rash.
Do I need to take my dog to the vet for ear mites?
Yes, dogs with ear mites require veterinary treatment. Prescription medications are necessary to eliminate ear mites and reduce ear canal inflammation.
Conclusion
Early detection and treatment of ear mites are crucial for protecting your dog's hearing and overall health. If you notice any symptoms of ear mites, don't delay—consult your veterinarian immediately. With proper treatment and preventive measures, you can ensure your furry friend maintains healthy, comfortable ears.