Understanding Mange in Cats
Mange is a skin condition caused by parasitic mites that trigger inflammation, itching, and hair loss. Several mite species can affect cats. The most common contagious feline mange is notoedric mange (also called feline scabies), caused by Notoedres cati. Demodectic mange is caused by Demodex mites—Demodex cati (follicular, non-contagious, usually linked to immune compromise) and Demodex gatoi (a superficial, contagious form). Other mite-related skin conditions in cats include Cheyletiella blakei (walking dandruff) and Otodectes cynotis (ear mites), which is actually the most common mange-like mite infestation in cats. Note: Sarcoptes scabiei, the dog/human scabies mite, only rarely and transiently affects cats and is not the typical feline mange parasite.
- ✓Notoedric mange (Notoedres cati): highly contagious, causes intense itching starting on the head, face, and ears
- ✓Demodectic mange: D. cati is non-contagious and linked to immune compromise; D. gatoi is superficial and contagious between cats
- ✓Cheyletiella blakei: 'walking dandruff' mite, mildly contagious
- ✓Otodectes cynotis: ear mites, the most common feline mite infestation
- ✓All forms are treatable with proper veterinary care
- ✓Mites are microscopic and invisible to the naked eye
Signs and Symptoms Your Cat May Have
The most obvious sign of mange is persistent scratching and biting at the skin, often to the point of self-injury. With notoedric mange, intense itching and hair loss typically start on the head, face, and ears, then spread to the neck, paws, and rest of the body. You may notice red, inflamed, or crusty skin, and in some cases secondary bacterial infections develop from scratching, causing odor, oozing lesions, or scabs.
- ✓Intense itching and frequent scratching or biting
- ✓Patchy or circular areas of hair loss
- ✓Red, inflamed, or thickened skin
- ✓Crusts, scabs, or oozing lesions
- ✓Ear irritation or discharge
- ✓Behavioral changes: restlessness, anxiety, difficulty sleeping
How Cats Get Mange and Risk Factors
Notoedric mange and other contagious mites spread through direct contact with infected animals or contaminated bedding and grooming tools. Outdoor cats, cats living in multi-cat households, and those in shelters or rescue environments face higher exposure risk. Demodex cati, by contrast, develops when a cat's immune system weakens due to age, illness, stress, or other underlying conditions and is not contagious—while Demodex gatoi CAN spread between cats. Cheyletiella and ear mites also spread through direct contact.
- ✓Notoedric mange and D. gatoi: spread through direct contact or shared items
- ✓Outdoor exposure increases risk of contagious mite exposure
- ✓Multi-cat households may see rapid spread if one cat is infected
- ✓Demodex cati: linked to immune system weakness, not exposure
- ✓Kittens, senior cats, and ill cats are more susceptible
- ✓Poor nutrition or stress can lower immune defenses
Diagnosis and Professional Evaluation
Your veterinarian will diagnose mange by examining your cat's skin and may perform a skin scraping or biopsy to identify mites under a microscope. Sometimes mites are not visible on the first attempt, so your vet may recommend a trial treatment or additional testing if symptoms persist. A thorough examination also helps rule out other causes of itching and hair loss, such as allergies, ringworm, or lice.
- ✓Skin scraping or biopsy to identify mites under microscope
- ✓Multiple scrapings may be needed if mites are few
- ✓Examination rules out other causes: allergies, ringworm, fleas, lice
- ✓Your cat's medical history and environment inform diagnosis
- ✓Secondary skin infections are documented and addressed
Treatment Options and Recovery
Treatment depends on the type of mange and your cat's overall health. Notoedric mange and other mite infestations are typically treated with macrocyclic lactone antiparasitics—the same drug class used for ear mites—such as selamectin (Revolution), moxidectin, or ivermectin. These may be given as topical spot-ons, injections, or oral medication; multiple treatments spaced 1–2 weeks apart are often needed. Demodex cati infestations may need more prolonged treatment and workup for underlying illness, while Demodex gatoi typically responds to lime sulfur dips or similar topicals. Environmental management—washing bedding, disinfecting grooming tools, and isolating infected cats—is essential to prevent reinfection.
- ✓Macrocyclic lactones: selamectin, moxidectin, or ivermectin (same class as ear mite treatments)
- ✓Lime sulfur dips may be used for Demodex gatoi and some other cases
- ✓Multiple treatments required, typically 1–2 weeks apart
- ✓Recovery takes 4–8 weeks depending on severity and treatment type
- ✓Nutritional support and immune-boosting care aid healing
- ✓Wash all bedding, toys, and grooming tools in hot water
- ✓Isolate infected cat to prevent transmission of contagious mites to other pets
Prevention and Long-Term Management
Prevent mange by keeping your cat's immune system strong through proper nutrition, regular vet check-ups, and stress reduction. Limit exposure to infected animals, especially for outdoor cats, and maintain clean living spaces with regular bedding changes. If you have multiple cats and one develops mange, isolate the affected cat, treat all potentially exposed animals, and monitor others closely for early signs.
- ✓Feed high-quality diet rich in omega fatty acids to support skin health
- ✓Keep your cat indoors to reduce exposure to parasites
- ✓Schedule regular vet visits to catch skin issues early
- ✓Maintain clean bedding and living spaces
- ✓Reduce stress through enrichment and routine
- ✓Monitor multi-cat households closely if one cat is diagnosed
