Ear mites are tiny enough that humans can’t see them with the naked eye, but they are one of the most common sources of discomfort in dogs. These microscopic parasites live right inside the ear canal, feeding on oils and wax, multiplying quickly, and triggering inflammation, itchiness, and even infection if left untreated. While these parasites are more common in cats, that doesn’t mean dogs are immune.
They are extremely contagious, and any close contact with an animal that has ear mites is enough to catch the parasites. The animal could be a cat, another dog, or wildlife like foxes and raccoons. Once your dog has them, they can spread quickly to both ears and other parts of the body. In households with multiple pets or or dog parks, one case can spread like wildfire.
The good news is that ear mites in dogs (and other animals) are treatable. The first step is taking your dog to the veterinarian to get a diagnosis and confirm the issue at hand. Sometimes, mites can be mistaken for a bacterial or yeast infection. Once the ear mites are confirmed, treatment often involves prescription ear drops or topical medications that kill the mites. You must also clean your dog’s ears thoroughly and treat every other pet in the household, even if they aren’t showing symptoms, because reinfestation is possible.
What Are Ear Mites?
Ear mites are spider-like parasites known scientifically as Otodectes cynotis. They live on the surface of the skin inside a dog’s ears, where they’re able to feed on debris, wax, and oil. These mites are microscopic and not so visible to the human eye, they can still cause significant irritation when present on your pet.
In the process of moving around the dog’s ear and feeding, ear mites tend to trigger an allergic response in many dogs. This leads to intense itching, inflammation and increased earwax production. The earwax looks dark and crumbly, almost like coffee grounds and it’s one of the telltale signs of an ear mite infestation.
Though they primarily live in the ears, ear mites are able to migrate to other areas in severe cases, like the neck, head, or tail, especially if your dog is scratching and spreading them through contact.
How Do Dogs Get Ear Mites?
The major cause of ear mites in dogs is direct contact with an infested animal. Dogs living with stray or outdoor cats face the biggest risk, since cats are more likely to carry the mites. However, dogs can also pick up ear mites at dog parks, groomers, kennels, and shelters.
Even a single mite can be a big problem, because once it latches onto your dog, the next step is multiplying. One female mite can lay up to five eggs each day, and in just three weeks, you’ll have a full infestation on your hands. If mites aren’t treated, the irritation can lead to scratching, open wounds, secondary infections, and even damage to the eardrum.
It is also possible to pick up mites from sharing toys or bedding, especially in crowded or unsanitary conditions, but it’s a lot less common.
Signs Your Dog Might Have Ear Mites
The most obvious sign of an ear mite infestation is constant scratching of the ears or head. Infected dogs will tend to violently shake their heads and rub their ears against the floor, furniture or walls as they try to relieve the itching. You may also notice:
- A dark, waxy, or crusty discharge inside the ear canal
- Redness and swelling inside or around the ears
- A bad smell coming from the ears
- Sensitivity when you touch the ears
- Hair loss or scabs from excessive scratching
If the infestation is left untreated, your dog could develop secondary bacterial or yeast infections, which can make symptoms worse and make treatment more complicated.
How Are Ear Mites Diagnosed?
While most of the symptoms of ear mites overlap with other ear infections, only a veterinarian can confirm a diagnosis. The vet will examine your dog’s ears and may use an otoscope to look inside the canal. They may also collect a small amount of the ear debris to visually inspect it under a microscope to verify if mites are present
This distinction is important because bacterial or yeast infections have different treatments. Using the wrong medication, like over-the-counter ear drops not designed for mites, might worsen the problem.
Treatment for Ear Mites in Dogs
Once diagnosed, treatment for ear mites is straightforward but you need to be consistent. The vet typically prescribes a medicated ear drop or topical treatment that will kill both the adult mites and their eggs. The medications need to be applied every day for 7 to 30 days, depending on how severe the infestation is and the product used.
After killing the mites, your vet will likely perform an ear cleaning on your dog to clear debris and wax buildup. You might be given a cleaning solution to use at home throughout the treatment period.
If the case is more severe or there are secondary infections, the vet may also prescribe antifungal medications or antibiotics to clear up the extra problems. It’s important to follow the treatment plan exactly and not stop medication early even if symptoms look like they’ve improved, because leftover eggs have the capacity to hatch and begin the infestation cycle all over again.
Ear mites are extremely contagious, so all other pets in the home should be treated at the same time, whether they’re showing symptoms or not. This prevents the mites from spreading back and forth between animals.
Can Humans Get Ear Mites from Dogs?
While ear mites are mainly a problem for animals, and the species that affect cats and dogs typically doesn’t infest humans, people who are in very close contact with infected pets may develop skin irritation, especially if there are many mites present. The risk is low, but it’s still a good idea to wash your hands after dealing with infected pets and keep bedding and soft surfaces clean during treatment.
How to Prevent Ear Mites
The main steps to preventing ear mites are good hygiene and regular ear checks. If your dog spends time around other animals, especially cats, make a habit of inspecting their ears every week. Keep ears clean and dry, and ask your vet to check them during routine visits.
You should also try to keep bedding, toys, and crates clean especially during and after treatment. Wash your pet’s belongings in hot water and vacuum floors and furniture often to reduce the chance of reinfestation.
If your dog goes to daycare, grooming appointments, or the dog park regularly, take note of any new scratching or head shaking after those visits. Catching ear mites early makes treatment much easier and reduces the risk of any complications.
Ear mites might be small pests but the discomfort and irritation they cause in dogs can be very serious. However, as long as you act quickly when symptoms appear, follow your vet’s instructions closely, and take care of all pets in the household, they’re completely manageable. The key is to stop the spread.
