Explore more

In this section

ear mites in cats: signs, treatment, and prevention

Ear mites in cats are tiny, highly contagious parasites that live in the ear canal and can cause intense itching, head shaking, and dark, crumbly debris that looks like coffee grounds.

Ear mites are especially common in kittens, outdoor cats, recently adopted cats, and cats living with other pets.

Because ear mites can look like yeast, bacterial infections, or even ordinary ear wax, a veterinarian should confirm the cause before you try to treat your cat's ears at home. Over-the-counter and home remedies aren’t very effective and can be harmful.

A veterinarian must examine an ear swab under a microscope to identify mites and check for secondary infections. Prescription parasite treatment is the safest and most reliable way to clear an ear mite infestation.

Seeing dark debris or constant scratching?

Get your cat’s ears checked

What are ear mites?

Ear mites are microscopic parasites that live primarily in the external ear canal. In cats, the species most commonly responsible is Otodectes cynotis. The mites feed on material in the ear and can trigger significant inflammation and itching.

The ear mite life cycle takes roughly three weeks, and they are highly contagious. An infected cat can spread them to another cat or dog through close contact, which is why it's often recommended to treat all animals in the household.

Download more about ear mites

Signs your cat has ear mites

The classic sign of ear mites in a cat's ears is dark, dry debris that can resemble coffee grounds. You may also notice:

intense scratching at one or both ears
frequent head shaking
dark brown or black, crumbly debris inside the ears
unpleasant or unusual odor
redness or inflammation
flattened or drooping ears
scratches, scabs, or raw skin around the ears
sensitivity when you touch the ears

Some cats can scratch their heads so forcefully that they damage the skin around their ears. Repeated head shaking or scratching can also cause an aural hematoma, a blood-filled swelling inside the ear flap. A swollen, puffy, or suddenly thickened ear flap should be checked out by a veterinarian.

Ear mites or something else? How to tell

Dark material in your cat's ear doesn't automatically mean ear mites. Ear mites, ear wax, flea dirt, yeast, and bacterial infections can all produce dark or abnormal-looking material, and they require different approaches.

Here are some clues:

What you notice	What it may mean
Dark, dry, crumbly debris that looks like coffee grounds	Ear mites
Light-colored wax and a comfortable cat	Normal ear wax
Dark specks on the fur or skin that resemble pepper	Flea dirt
Moist brown or greasy discharge with odor	Yeast or another ear infection
Yellow or cream-colored discharge, inflammation, and pain	Bacterial infection or another inflammatory ear problem

Flea dirt deserves special attention because fleas are common in cats, and their droppings can also look like tiny dark particles. However, you can't make a diagnose based on appearance alone. A vet’s evaluation will distinguish mites from yeast and bacteria, and identify if your cat has a secondary infection.

Learn more about cat ear infections

How did my cat get ear mites?

Cats usually get ear mites through close contact with an infected animal. Kittens, outdoor cats, recently adopted cats, and cats living in shelters or multi-cat households have more opportunities for exposure.

Indoor cats can get ear mites, too. Another cat or dog can bring mites into the household, and close contact between pets means the parasites can spread.

If one cat is diagnosed with ear mites, it's important to tell your veterinary team about every dog and cat that regularly interacts with that cat. Household pets may need to be treated at the same time to prevent the infestation from passing back and forth.

A shaggy gray cat getting examined by a vet tech

How vets diagnose ear mites

Your veterinarian may suspect ear mites based on your cat's history and the appearance of the ears, but microscopic examination is needed to confirm the diagnosis.

Your vet will swab a sample of ear debris to look for mites, eggs, and other evidence of infestation under a microscope. They will also be able to identify yeast or bacteria that could be contributing to your cat's ear inflammation. From there, they can provide treatment for your cat’s specific ear issues.

A thorough ear examination also helps your veterinarian look for complications such as severe inflammation, a damaged eardrum, or another cause of ear discomfort.

How to get rid of ear mites in cats

Getting rid of ear mites in cats requires a vet-recommended antiparasitic treatment. Your veterinarian will choose a product and dose appropriate for your cat’s age, health, and level of infection rather than relying on a one-size-fits-all treatment.

Veterinarians commonly prescribe or apply a single-dose topical or spot-on parasite medication in the selamectin or similar antiparasitic class to target mites. They may also recommend cleaning your cat’s ears to remove wax and debris, which can make it easier to evaluate the ear and allow topical medication to work more effectively.

Your vet may also need to treat for bacteria or yeast if a secondary infection has formed. It’s important to adhere to the full treatment schedule and not stop as soon as the itching goes away.

If you have multiple pets, your vet may recommend treatment for every dog and cat that has been exposed.

Learn how to clean your cat's ears

What clears ear mites in cats? Safe vs. unsafe options

The most reliable way to clear ear mites in cats is with a veterinarian-recommended parasite treatment. There isn't a safe household remedy that will reliably get rid of an ear mite infestation instantly.

Some veterinary treatments can kill mites quickly, but your cat may still need additional treatment or follow-up depending on the product used, the severity of the infestation, and whether other pets have been exposed.

Over-the-counter ear mite products aren't always the best choice. Some may not fully clear the infestation, may not be appropriate for your cat's age or health, or may delay treatment if the dark debris is actually caused by yeast, bacteria, fleas, or another ear problem. The safest path is to have your veterinarian diagnose the exact issue and treat it accordingly. They will also check if the ear drum is intact. Using some medications when there’s a ruptured ear drum can cause significant damage.

Do not use these products or methods to treat ear mites in cats:

Tea tree oil — can be toxic to cats
Hydrogen peroxide — can irritate inflamed ear tissue and cause discomfort
Rubbing alcohol — can be painful and irritating in an already inflamed ear
Dog ear mite or parasite medication — some products or ingredients intended for dogs are toxic to cats
Cotton swabs pushed into the ear canal — can injure the ear or push debris in deeper

If your cat has dark ear debris, intense scratching, or frequent head shaking, have your veterinarian check the ears. Home treatments can make the situation worse and cause your cat more pain.

Treating multi-cat homes, kittens, and special cases

Ear mites can be especially difficult to get rid of when several pets live together. If one cat has ear mites, your veterinarian may recommend treating all cats and dogs that have been exposed.

Kittens deserve extra care because not every parasite medication is appropriate for every age or weight. Newly adopted kittens and cats with an unknown medical history should have a veterinary exam before choosing a parasite treatment.

Pregnant or nursing cats also need veterinary guidance before receiving medication. Don't assume that a product used safely on another cat will be appropriate for them.

Shelters, rescues, foster homes, and feral cat colonies can present additional challenges because many animals may have been exposed. A veterinarian can help create a practical treatment plan for the group.

Cleaning your home after ear mites

You don't need to disinfect every surface in your home to address ear mites. Treating the affected pets is the most important step because the mites spend most of their life on the animal. However, cleaning areas where your pets spend time can help reduce the chance of continued exposure.

While your pets are being treated:

Wash bedding, blankets, and other washable items your cats frequently use.
Clean favorite sleeping and resting areas.
Wash or replace heavily soiled bedding.
Follow your veterinarian's treatment instructions for every exposed pet.
Don't stop treatment just because your cat's ears look cleaner.

Your veterinary team can guide you how much cleaning makes sense for your household.

How to prevent ear mites

We recommend year-round parasite prevention for all cats, and these often help them stay protected from ear mites. Talk to your veterinarian about which parasite preventive is best for your furry companion.

It’s also a good idea to have new cats and kittens examined before introducing them to other pets. Check all your pets’ ears periodically for changes in debris, odor, redness, or comfort to help catch issues early.

Learn more about ear care for cats

Ear mites in cats FAQs

Can humans get ear mites from cats?

Ear mites are highly contagious between cats and dogs, but they are not considered a common human infestation. If you develop persistent itching or a rash after contact with an affected pet, talk with a healthcare professional.

Can indoor cats get ear mites?

Yes. Indoor cats can get ear mites through contact with an infected animal, even if your cat never goes outside. A recently adopted or other household pet can introduce parasites.

Can my cat give ear mites to my dog?

Yes. Ear mites can spread from cats to dogs through close contact, but it’s not very common. If one pet is diagnosed, your veterinarian may recommend examining or treating other dogs and cats in the household.

How long does it take to get rid of ear mites?

The timeline depends on the medication used, the infestation's severity, and whether other pets need treatment. Because ear mites have a life cycle of about three weeks, follow your veterinarian's treatment schedule rather than stopping when the itching or debris improves.

Can ear mites cause deafness or an ear hematoma?

Severe ear inflammation can contribute to complications, including an aural hematoma caused by repeated scratching or head shaking. If inflammation or infection extends into deeper parts of the ear, hearing and balance can also be affected. Prompt veterinary care can help reduce the risk of serious complications.

Is hydrogen peroxide or tea tree oil safe for cat ear mites?

No. Don't put hydrogen peroxide or tea tree oil in your cat's ears unless it’s included in a vet-approved product. Tea tree oil can be toxic to cats, while hydrogen peroxide can irritate inflamed ear tissue.

Can I use dog ear mite medicine on my cat?

Never give your cat a dog parasite medication unless your veterinarian specifically tells you to use that exact product. Some ingredients or formulations intended for dogs can be dangerous to cats.

Do over-the-counter ear mite drops actually work?

Some over-the-counter products may contain ingredients intended to kill mites, but they aren't necessarily the best or safest choice. They can also delay proper treatment if the problem is actually yeast, bacteria, fleas, or something else. A veterinarian needs to check that the ear drum is intact before you use any topical medication, and proper testing can make sure you’re treating the right problem.

When to see your Banfield veterinary team

Seeing dark debris or constant scratching? Schedule an ear exam with your Banfield veterinary team for a quick diagnosis and the right treatment. Find a Banfield near you

Did you know that an ear exam is included in the first year of all Optimum Wellness Plans^®?

Explore OWPs for cats

A kitten looking over a veterinary professional's shoulder

Medically reviewed by Diana Luplow, DVM

Important Notice: The information provided on this page is for informational purposes only and is not a substitute for professional veterinary advice. Always consult a veterinarian with any questions regarding your pet's health or medical condition. Never disregard or delay seeking professional veterinary advice based on information from this page.