What Are Dog Ear Mites?

If your dog has been shaking their head, scratching at their ears, or you have noticed a dark, crumbly discharge in the ear canal, dog ear mites may be the culprit. Dog ear mites are tiny parasites that live in and around the ear canal, causing intense irritation and discomfort. Though very small, nearly invisible to the naked eye, ear mites in dogs can cause significant problems if left untreated. At Kryder + Harr Veterinary Clinic in Granger, IN, ear mite diagnosis and treatment is a routine part of what we do, and we want to help you recognize the signs so you can get your dog relief quickly.

What Are Dog Ear Mites?

Ear mites are microscopic parasites, specifically, Otodectes cynotis, that live primarily in the ear canals of dogs, cats, rabbits, and ferrets. They feed on oils and ear wax and are highly contagious between animals. A single ear mite lives only a few weeks, but they reproduce rapidly, which means a small infestation can grow quickly without treatment. Ear mites in dogs are more commonly seen in puppies and young dogs, as well as in animals that spend time outdoors or in close contact with infected animals.

Signs of Ear Mites in Dogs

The symptoms of dog ear mites are fairly recognizable once you know what to look for:

• Head shaking (frequent and persistent)
• Scratching at the ears or side of the face
• Dark brown or black discharge in the ear canal, often described as resembling coffee grounds
• Redness and inflammation of the ear canal and outer ear flap
• An unpleasant odor from the ears
• Crusting or scabbing around the ears from self-trauma
• Hair loss around the ears from persistent scratching

In severe infestations, ear mites can spread beyond the ear canal to surrounding areas of the skin, causing a broader pattern of irritation.

How Are Ear Mites Diagnosed?

Diagnosis of ear mites in dogs is made by one of our veterinarians through an otoscopic ear exam, where a lighted instrument is used to examine the inside of the ear canal. The characteristic dark discharge alongside visible movement of the mites (sometimes visible to the naked eye as tiny white dots moving in the debris) and clinical signs typically confirm the diagnosis. A sample of the ear discharge may also be examined under a microscope. Other ear conditions including bacterial infections, yeast infections, and foreign bodies can mimic ear mites, so a proper diagnosis is important before starting treatment.

Ear Mites vs. Ear Infection

Dog ear mites and ear infections share many symptoms, including head shaking, scratching, and ear discharge. However, bacterial and yeast ear infections typically produce moist, creamy, or yellow-green discharge with a strong odor, while ear mites produce dry, dark, crumbly discharge. Both can occur simultaneously as ear mite infestations often create conditions favorable for secondary infections. Your veterinarian will determine what is present and recommend appropriate treatment for each condition.

How Are Dog Ear Mites Treated?

Treatment for dog ear mites has improved significantly over the years. Options include:

• Topical ear mite medications: Applied directly into the ear canal, these kill mites and their eggs over a course of treatment.
• Topical spot-on parasiticides: Some broad-spectrum parasite preventives, such as products containing selamectin or moxidectin, are highly effective against ear mites when applied to the skin.
• Ear cleaning: Thorough cleaning of the ear canal by your veterinarian removes debris and allows medications to work more effectively.

The entire treatment course must be completed as directed, even if symptoms improve quickly. Mite eggs can survive in the environment, and all pets in the household should be treated simultaneously, as ear mites spread easily between animals.

Can Dog Ear Mites Spread to Humans?

Ear mites are primarily a veterinary concern and are not well adapted to living on humans. While there have been rare reports of temporary skin irritation in humans from contact with ear mites, sustained infestations in humans are extremely uncommon. The primary concern is spread between pets in the same household.

Preventing Ear Mites in Dogs

Regular veterinary ear exams, routine cleaning of your dog’s ears as directed by your vet, and year-round parasite prevention are the best strategies for preventing ear mites. If you have multiple pets, treating all of them simultaneously during any outbreak is critical to avoid reinfection.

Comfortable Ears Are Happy Ears

Dog ear mites cause real discomfort, and no dog should have to live with the persistent irritation of an untreated infestation. If your dog is shaking their head or scratching their ears, call us at (574) 277-6533 to schedule an appointment at Kryder + Harr Veterinary Clinic in Granger, IN. Our team will get to the bottom of the problem quickly and have your dog feeling much more comfortable in no time.