Updated September 25, 2026. Fact-checked against veterinary sources; review by a licensed veterinarian is in progress. See our editorial policy.
Quick answer: Sarcoptic mange (canine scabies) is caused by a burrowing mite that triggers intense itching, often starting on the ear edges, elbows, hocks, and belly. It spreads easily between dogs, can come from foxes, and can cause a temporary itchy rash in people. Several prescription parasite products treat it effectively, and all dogs in the home usually need treatment.
Signs
- Severe itching, often sudden
- Crusting on ear edges (scratching an ear edge may trigger a leg-kicking reflex)
- Red bumps and hair loss on elbows, hocks, belly, and chest
- Thickened skin in long-standing cases
Diagnosis
- Skin scrapings (mites are often hard to find)
- Response to treatment is often used to confirm
Treatment
- Prescription parasite products, including some isoxazolines and selamectin, as your vet directs
- Treat all dogs in contact
- Wash bedding in hot water
- Short-term itch relief and treatment of skin infections
People
People may develop itchy red bumps on the arms or waist. They usually resolve once the dog is treated. See a doctor if you have a rash.
What to avoid
- Livestock ivermectin products (dangerous for some breeds, such as Collies)
- Motor oil, borax, or other home remedies
- Delaying treatment
Sources
- Merck Veterinary Manual: Mange in dogs
- Companion Animal Parasite Council (CAPC): Sarcoptes guidelines
- Washington State University: MDR1 gene mutation and drug sensitivities
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.