Updated September 25, 2026. Fact-checked against veterinary sources; review by a licensed veterinarian is in progress. See our editorial policy.
Quick answer: Cheyletiella mites live on the skin surface and cause heavy dandruff, often along the back, that can appear to move, hence the name “walking dandruff.” Cats may be mildly itchy or not itchy at all. The mites spread easily between cats, dogs, and rabbits, and can cause temporary itchy bumps on people. Prescription parasite treatments are effective when all pets in the home are treated and the environment is cleaned.
Signs
- Scaling or dandruff, often along the back
- Mild to moderate itching
- Small scabs
- Hair loss in some cats
Diagnosis
- Tape or comb samples examined under a microscope
- Mites or eggs can be hard to find, so vets may treat based on suspicion
Treatment
- Prescription parasite products, as your vet directs
- Treat all cats, dogs, and rabbits in the home
- Wash bedding and vacuum thoroughly
- Repeat treatments as instructed
People
People may get itchy red bumps on the arms or trunk. They usually clear once pets are treated. See a doctor if needed.
What to avoid
- Dog flea or mite products on cats
- Essential oils
- Treating only one pet
Sources
- Merck Veterinary Manual: Mites of small animals (Cheyletiellosis)
- Companion Animal Parasite Council (CAPC): Cheyletiella
This article is for general education and is not a substitute for care from your own veterinarian. Learn about The Pet Vet and our editorial policy.