Does My Cat Have Ear Mites?

If your cat has been shaking its head, scratching at its ears, or you’ve noticed dark, crumbly gunk that looks like coffee grounds inside the ear canal, ear mites are a likely culprit. They’re one of the most common ear problems in cats, especially in kittens, and the good news is they’re very treatable with the right vet-prescribed products.

Here’s what you need to know.

What are ear mites in cats?

Ear mites (Otodectes cynotis) are microscopic parasites that live in the ear canals of cats, dogs, and other animals. They feed on the oils and debris inside the ear and reproduce quickly. A single mite is invisible to the naked eye, but a full infestation leaves behind plenty of evidence.

They’re especially common in kittens and outdoor cats, but any cat can pick them up through contact with an infected animal. They can’t survive long on humans, so you don’t need to worry about catching them yourself.

Signs and symptoms of ear mites in cats

You’ll usually notice the signs before you ever see the mites themselves. Here’s what to look for:

• Dark, crumbly debris in the ear canal: The most distinctive sign. Looks like coffee grounds or dried dirt inside the ear. If you’re seeing this alongside scratching, call your vet.
• Head shaking that seems persistent or frantic: Your cat is trying to dislodge something uncomfortable. Occasional head shaking is normal; constant or frantic shaking is not.
• Scratching at the ears: Sometimes hard enough to cause small cuts or scabs around the ear. If your cat has scratched itself to the point of bleeding, see a vet today.
• Dark brown or black discharge: Dry and waxy, inside the ear canal. Combined with head shaking, this is a prompt vet call.
• Redness or inflammation inside the ear: A sign the ear is irritated, whether from mites or from scratching.
• An unpleasant smell from the ear: Less common with mites alone. If you’re noticing odor, it may signal a secondary infection developing alongside the mites.

In kittens, symptoms can escalate faster because their immune systems are still developing. If your kitten is shaking its head constantly or scratching until it bleeds, get to a vet sooner rather than later.

Mites, earwax, or a yeast infection? What’s actually in your cat’s ear

Don’t try to self-diagnose by appearance alone. Here’s what each typically looks like:

	Ear mites	Normal earwax	Yeast/bacterial infection
Debris color	Dark brown or black	Light brown	Dark brown, often wet-looking
Debris texture	Dry, crumbly, like coffee grounds	Waxy, soft	Often moist or sticky
Smell	Usually mild	None	Often noticeable odor
Which ears affected	Usually both	Both	Often just one
Cat’s behavior	Active scratching and head shaking	No discomfort	May tilt or hold head to one side
How to confirm	Microscope swab at vet	Visual exam	Microscope swab at vet

Your vet can take a quick swab of the ear debris, look at it under a microscope, and tell you within minutes what you’re actually dealing with. That step is worth it.

What causes ear mites in cats, and are they contagious?

Ear mites spread through direct contact with an infected animal. That’s it. Your cat doesn’t need to go outside or be exposed to anything unusual. A brief sniff with another cat or dog who has mites is enough.

They’re highly contagious between pets in the same household. If one pet has them, assume all your pets need to be checked and treated, even if the others aren’t showing symptoms yet. Mites can live off a host for a short time in the environment too, so bedding and shared spaces may need attention.

How to get rid of ear mites in cats: diagnosis and treatment

Your vet will confirm the diagnosis with an ear swab, looking at the sample under a microscope to spot the mites or their eggs. From there, treatment is usually straightforward.

What your vet may recommend

• Spot-on treatments: Applied to the skin at the back of the neck, these are absorbed into the body and kill mites systemically. Some common flea and parasite preventatives also cover ear mites, making them a convenient option.
• Prescription ear drops: Applied directly into the ear canal, these kill mites locally. Some are a single-dose treatment; others require a course of several applications.
• Ear cleaning: Your vet may clean the ear first to remove debris, which makes treatment more effective and gives your cat relief faster.

What about home remedies?

You’ll find a lot of suggestions online, from olive oil to diluted apple cider vinegar, and the appeal is obvious. But here’s the honest answer: there’s no home remedy that reliably kills ear mites, and none of them work instantly. Some may soothe irritation temporarily, but they won’t clear an infestation. Delaying proper treatment means your cat keeps suffering and the mite population keeps growing. Skip the DIY route and go straight to your vet.

Does pet insurance cover ear mites in cats?

Vet visits add up fast, especially when you factor in the exam, the ear swab, and the medication.

Ear mites are covered under Lemonade Pet illness coverage, as long as the condition isn’t pre-existing and develops after the applicable illness waiting period has passed. If your cat is already scratching at its ears, a policy you sign up for today won’t cover this particular visit. The time to get coverage is before something comes up. If your cat is healthy right now, getting a policy in place means you’re protected for the next time something unexpected happens.

Before we go

Ear mites are uncomfortable for your cat, but they’re also one of the more straightforward things a vet can diagnose and treat. If you’re seeing the coffee-ground debris, the head shaking, or the constant scratching, don’t wait it out. Get your cat seen, confirm what’s actually going on, and get the right treatment started. And if you have other pets at home, bring them in too. The faster you catch and treat it across the household, the sooner everyone’s comfortable again.

Frequently Asked Questions

A few quick words, because we <3 our lawyers: This post is general in nature, and any statement in it doesn’t alter the terms, conditions, exclusions, or limitations of the policies issued, which differ according to your state of residence. You’re encouraged to discuss your specific circumstances with your own professional advisors. The purpose of this post is merely to provide you with info and insights you can use to make such discussions more productive! Naturally, all comments by, or references to, third parties represent their own views, and Lemonade assumes no responsibility for them. Coverage may not be available in all states. Please note that statements about coverages, policy management, claims processes, Giveback, and customer support apply to policies underwritten by Lemonade Insurance Company or Metromile Insurance Company, a Lemonade company, sold by Lemonade Insurance Agency, LLC.  The statements do not apply to policies underwritten by other carriers.