What Is Mange in Cats?
Mange is a skin disease caused by microscopic mites that burrow into or live on the skin, triggering intense itching, hair loss, and skin inflammation. While mange is better known as a dog condition, cats can and do develop mange — and the symptoms can be severe if left untreated.
There are several types of mange that affect cats, each caused by a different mite species with different presentations, transmission patterns, and treatments. Accurate diagnosis is essential because the treatments differ significantly between types.
Types of Mange in Cats
Notoedric mange (feline scabies): Caused by Notoedres cati, this is the most severe and most contagious form of cat mange. The mites burrow into the skin, causing intense itching that starts on the head and ears — particularly around the ear margins, forehead, and neck — and can spread to the whole body if untreated. The skin becomes thickened, crusted, and wrinkled. Notoedric mange is highly contagious between cats and can temporarily infect humans (causing a self-limiting rash), though humans are not a suitable host. Stray and feral cat populations are most commonly affected.
Demodectic mange: Caused by Demodex cati or Demodex gatoi, this form is less common in cats than in dogs. D. cati is a normal resident of hair follicles and only causes problems when a cat’s immune system is compromised (by FIV, FeLV, diabetes, or prolonged steroid use). D. gatoi is contagious between cats and causes intense surface itching, often affecting the trunk, head, and limbs. Demodicosis in cats often indicates an underlying health issue that must also be addressed.
Otodectic mange (ear mites): Otodectes cynotis are the mites that cause ear mite infections — technically a form of mange, though most people think of ear mites as a separate condition. They live in the ear canal, causing dark, crumbly discharge, intense head shaking, and ear scratching. They’re highly contagious between cats, dogs, and other pets in the same household.
Cheyletiellosis (walking dandruff): Caused by Cheyletiella blakei in cats, this surface mite causes excessive flaking that can actually appear to move (the mites are large enough to be visible to the naked eye in some cases), mild itching, and scaly skin. It’s contagious between cats, dogs, and rabbits, and can temporarily affect humans.
Symptoms of Mange in Cats
Symptoms vary by mange type but commonly include:
- Intense itching and scratching, sometimes to the point of self-injury
- Hair loss (alopecia), often patchy and starting on the head, ears, or neck for notoedric mange
- Thickened, crusted, or scaly skin
- Redness and skin inflammation
- Skin that appears dirty, gray, or yellowish due to crust accumulation
- Secondary bacterial skin infections from repeated scratching
- Weight loss and poor overall condition in severe or long-standing cases
The key distinguishing feature of mange compared to other skin conditions is the intensity of the itch combined with the pattern of hair loss. Ringworm (a fungal infection) causes similar patchy hair loss but with less intense itching. Allergies cause generalized itching but often without the thick crusting seen in notoedric mange.
Diagnosing and Treating Mange in Cats
Mange in cats must be diagnosed by a veterinarian. The standard diagnostic approach includes:
Skin scraping: A scalpel blade is used to scrape the surface layers of affected skin, and the collected material is examined under a microscope for mites or eggs. Deep scrapings are used for Demodex cati (which lives in follicles), while surface scrapings detect Cheyletiella. Note that skin scrapings for D. gatoi are often falsely negative because the mites are superficial and cats groom them off — a response to treatment is sometimes used as a diagnostic tool.
Treatment options:
- Selamectin (Revolution/Stronghold): A topical spot-on treatment effective against notoedric mange and ear mites. Usually applied monthly for 2-3 treatments.
- Ivermectin: Effective against several mite types, administered by injection or orally by your vet. Some breeds may have sensitivity — always use under veterinary guidance.
- Lime sulfur dips: An older treatment that remains effective, particularly for notoedric mange, applied weekly for 4-6 weeks. The smell is unpleasant but efficacy is good.
- Isoxazoline parasiticides: Newer flea/tick medications like fluralaner (Bravecto for cats) and sarolaner have been used off-label for various mite infections with good results.
- Environmental treatment: For contagious forms, the cat’s bedding, grooming tools, and sleeping areas should be washed or treated. All in-contact pets should be treated simultaneously.
- Secondary infection management: If bacterial skin infections have developed from scratching, antibiotics may also be prescribed.
Prevention and Outlook
Most cats with mange respond well to appropriate treatment, and the prognosis is generally very good when the condition is caught and treated before severe skin damage or secondary infections develop. For demodectic mange, identifying and treating the underlying immune compromise is essential for long-term resolution.
Prevention focuses on:
- Keeping cats on regular parasite prevention programs (monthly spot-on treatments)
- Minimizing contact with stray or feral cats (primary source of notoedric mange)
- Treating all household pets simultaneously if one pet is diagnosed
- Regular veterinary wellness exams to catch skin changes early
It depends on the mite species. The dog mange mite (Sarcoptes scabiei) rarely establishes itself on cats. However, Cheyletiella and ear mites (Otodectes) can spread between dogs and cats in the same household. All in-contact pets should be treated simultaneously when one is diagnosed.
Some cat mange mites — particularly notoedric mange and Cheyletiella — can temporarily infest humans, causing a self-limiting, itchy rash. The mites cannot complete their lifecycle on a human host, so the rash resolves on its own once the cat is treated. Consult a doctor if the rash is severe.
Most forms of mange require 4-8 weeks of treatment to fully resolve. Notoedric mange often shows significant improvement within 2-3 weeks of starting treatment, but the full course must be completed. Demodectic mange associated with an underlying disease may take longer and require ongoing management.
Notoedric mange (feline scabies), Cheyletiella, Demodex gatoi, and ear mites are all contagious between cats. If one cat in your household is diagnosed, all cats (and sometimes dogs) should be examined and treated by your vet simultaneously to prevent re-infestation.
Mange typically presents as patchy hair loss, thickened or crusted skin (often yellowish or grayish), redness, and intense scratching. Notoedric mange usually starts around the head, ears, and neck. The affected skin may look dirty or scabby. A vet visit is needed for accurate diagnosis, as mange can resemble other skin conditions.