By Dial A Vet Veterinary Team
Ear mites are one of those problems that rarely stay with one pet. A new kitten arrives from a shelter, and a few weeks later the older cat and the family dog are scratching too. Ear mites are tiny, highly contagious parasites, and they cause intense itching that can lead to raw skin, infections and blood blisters in the ear flap. The good news is they are very treatable, as long as every pet in the home is treated together and the full course is finished.
Key takeaways
- The common ear mite, Otodectes cynotis, infects cats, dogs and ferrets and passes easily between them.
- Rabbits are usually affected by a different mite, Psoroptes cuniculi, which causes thick crusts in the ear.
- Dark, crumbly debris that looks like coffee grounds is the classic sign in cats and dogs.
- All susceptible pets in the household should be treated at the same time, even if only one is scratching.
- A vet can confirm mites in minutes by looking at ear debris under a microscope.
How ear mites live and spread
Otodectes mites live on the surface of the ear canal, feeding on wax and skin debris. Their full life cycle, from egg to adult, takes about three weeks, all of it on the host. They spread through direct contact, such as cuddling, sharing beds or grooming each other. Mites can survive briefly off the animal in bedding, which is why a household outbreak can bounce back if one pet is missed.
Signs by species
Cats
Cats are the most common hosts, especially kittens and cats from shelters, breeders or multi-cat homes. Look for:
- Dark brown or black, dry, crumbly debris in the ear canal
- Scratching at the ears and head shaking
- Scabs and scratches behind the ears and on the neck
- Occasionally mites elsewhere on the body, causing itchy skin
Some cats carry mites with few signs and quietly spread them to others. If your cat is scratching its ears, see why cats scratch their ears for other causes.
Dogs
Dogs often catch ear mites from cats. Puppies are most commonly affected. Signs include head shaking, scratching and similar dark debris, sometimes with a smell. In adult dogs, itchy ears are more often due to allergies or infections than mites. Our article on ear mites in puppies and dogs covers dogs in more detail.
Rabbits
Psoroptes cuniculi, sometimes called ear canker, causes thick, layered, yellow-grey crusts that can fill the ear canal and spread down the ear flap. Rabbits shake their heads, scratch and may have sore, inflamed skin underneath. Severe cases can lead to middle ear infection and head tilt. Never pull crusts off, as this is very painful.
Ferrets
Ferrets commonly carry Otodectes mites, often with brown wax but few other signs. Ferrets are illegal as pets in Queensland and the Northern Territory. Elsewhere in Australia, they should be included in household treatment.
When to see a vet
Same day: head tilt, loss of balance, bleeding, a very painful ear, or a pet that is unwell or not eating.
Within a few days: scratching, coffee-ground debris, crusts in a rabbit's ears, or a puffy ear flap, which may be an aural haematoma.
How vets diagnose ear mites
Your vet will look into the ears with an otoscope, where mites may be seen moving as tiny white specks. A sample of ear debris examined under a microscope usually confirms the diagnosis and shows whether there is also a bacterial or yeast infection. Rabbits may need more gentle handling or sedation if the ears are very sore.
Treatment overview
Several modern parasite treatments are effective against ear mites, including some spot-on and chewable products. Ear drops may also be used, sometimes alongside gentle ear cleaning by your vet. Your vet will choose products that are safe for each species, age and size, and advise how long to continue treatment so the full mite life cycle is covered.
Products are not interchangeable between species. Some dog flea treatments containing permethrin are extremely toxic to cats, and some products are not safe for rabbits.
Stopping the spread at home
- Treat every cat, dog and ferret in the household at the same time, as your vet advises.
- Wash pet bedding in hot water and vacuum where pets sleep.
- Keep new animals separate until they have had a vet check.
- Finish the full course, even if the itching stops early.
- Book a recheck to confirm the mites are gone.
FAQ
Can I see ear mites with the naked eye?
Sometimes, as tiny moving white dots on dark debris, but usually a vet needs magnification.
Can people catch ear mites from pets?
Rarely. Occasionally they cause a temporary itchy rash on people who handle affected animals closely.
Why have the ear mites come back?
Usually because one pet was missed, treatment stopped too soon, or a new animal reintroduced them.
Are home remedies effective for ear mites?
Oils and household products are not reliable and some are harmful. See home remedies for ear mites.
Talk with a vet
If one of your pets is scratching its ears and you want help working out whether it could be mites, a Dial A Vet veterinarian can talk it through with you. Chat with a Dial A Vet vet. Head tilt, loss of balance or a pet that is unwell needs in-person care today.
References
- Merck Veterinary Manual: Otodectic mange (ear mites) in dogs and cats
- Merck Veterinary Manual: Parasitic diseases of rabbits, ear mites
- Cornell Feline Health Center: Ear mites
- RSPCA Australia Knowledgebase: Rabbit health care
Disclaimer: Educational only. This page does not replace an examination or advice from your own veterinarian. If you are worried about your pet right now, contact your local vet or nearest emergency animal hospital.
