Is My Cat’s Dandruff Caused by Mites or Something Else?


There are two common conditions that can cause flaky, scaly skin in cats – dandruff and mites. Dandruff is a mild skin condition that causes dry, flaky skin similar to dandruff in humans. It is usually caused by dry skin or allergies. Mites are tiny parasites that live on the skin and cause more severe irritation, inflammation, and scratching. The most common mite infection in cats is cheyletiellosis, also known as “walking dandruff” because the mites look like dandruff flakes moving around on the skin.

While both can cause flaky skin, there are some key differences between dandruff and mites in cats:

  • Dandruff flakes are dry and white, while mites may cause flaky skin that looks greasy or yellowish.
  • Mites cause much more itching, scratching, and skin irritation than dandruff.
  • Dandruff is easily brushed off while mite flakes cling to the fur.
  • Dandruff is not contagious, but mites can spread between cats and even to people.
  • Dandruff usually responds to moisturizing treatments, but mites require medication to kill the mites.

Knowing the symptoms and identifying the cause as dandruff or mites is important for getting proper treatment. Mites should be addressed quickly before the infestation spreads.

Causes of Dandruff in Cats

There are several potential causes of dandruff in cats:

Dry skin is a common cause of dandruff in cats. Cats naturally produce oils that keep their skin and coat hydrated. If they groom excessively or don’t produce enough oils, their skin can become too dry and flaky (Source).

Allergies can also cause dandruff in cats. Cats can develop allergies to things like food, flea bites, pollen, or household products. These allergies cause irritation and inflammation that make skin flaky (Source).

Seasonal changes often lead to dandruff in cats. Lower humidity in the winter combined with indoor heating can dry out a cat’s skin. Higher humidity in summer can also cause skin irritation for some cats (Source).

Stress is another potential cause of dandruff in cats. Stress leads to increased grooming behaviors that strip oils from the skin. The hormonal changes of stress can also irritate skin and cause flakes.

Poor nutrition can also play a role. Not getting enough healthy fats and oils or certain vitamins can cause dry, flaky skin in cats.

Symptoms of Dandruff

The most common symptoms of dandruff in cats include flaky, dry skin and mild itching or scratching. Cat owners may notice small white flakes in their cat’s fur or on their bedding. This is caused by excess skin cells shedding from your cat’s skin more rapidly than normal.

According to the experts at WebMD, dandruff causes “small, dry, white flakes on your cat’s skin, fur, or bedding” (source). The flaking and dryness is often accompanied by some itchiness or scratching as well. Your cat may frequently try to scratch itself to relieve irritation from the flaky buildup on its skin.

You may also notice some mild redness or irritation on areas where your cat excessively scratches. The itchiness leads to scratching, which can further aggravate the skin. Look for signs of redness or irritation, especially around your cat’s neck or back.

In summary, the key symptoms of feline dandruff include flaky, dry skin. Itching and scratching. Skin redness or irritation. If you notice any of these, it’s a sign your cat may have dandruff and require treatment.

Diagnosing Dandruff

To properly diagnose dandruff in cats, a veterinarian will need to do a full examination of your cat and potentially run some tests. The vet will first take a medical history and ask about any symptoms you have noticed. During the physical exam, the vet will thoroughly inspect your cat’s skin and coat looking for signs of flaky skin, redness, sores, or hair loss.

One of the main diagnostic tests for dandruff is skin scraping. This involves using a scalpel blade to gently scrape off some of the flaky skin cells. These cells are then examined under a microscope, which allows the vet to check for any fungal infections or parasites like mange mites that could be causing dandruff [1].

Skin cultures or biopsies may also be taken to test for bacterial or fungal infections. Blood tests can help uncover any underlying diseases that may lead to dandruff. Allergy testing may also be recommended to see if environmental allergens are causing skin irritation and flakes.

With a thorough veterinary exam and diagnostic testing, the specific cause of your cat’s dandruff can be identified. This allows for proper treatment to be determined and relief for your cat’s flaky, irritated skin.

Treating Dandruff

There are several ways to treat dandruff in cats, including making dietary changes, using fatty acid supplements, and medicated shampoos.

Changing your cat’s diet can help reduce dandruff. Food allergies may contribute to skin irritation and flakes. Switch to a high-quality diet formulated for skin and coat health, like Hill’s Science Diet Sensitive Stomach & Skin cat food ( Avoid cheap grocery store brands that lack proper nutrients. Consult your vet for diet recommendations.

Fatty acid supplements like fish oil can reduce inflammation and moisturize your cat’s skin. Nordic Naturals Omega-3 Pet Soft Gels are veterinarian recommended ( Follow dosage instructions carefully.

Medicated cat shampoos with antifungal and antibacterial ingredients can help relieve dandruff while soothing irritated skin. Veterinarian-recommended options include Douxo Chlorhexidine PS Shampoo and Vet Solutions Universal Medicated Shampoo (, Follow directions carefully and rinse thoroughly after use.

Causes of Mites

Mites are tiny parasitic organisms that live on the skin of cats. The most common mites that affect cats are ear mites (Otodectes cynotis) and mange mites like demodex or scabies mites.[1] Mites are contagious and can spread between cats and other animals. Here are some of the main causes of mites in cats:

Parasites: Ear mites are highly contagious parasites that are transmitted through contact with an infected cat. Kittens and stray cats are more prone to ear mites. Mange mites like demodex live in the hair follicles and are passed from mother cats to kittens.[2]

Contact with other pets: Ear mites and mange mites spread through close contact with infected cats and dogs. Multi-pet households have a higher risk of transmitting mites between pets.

Unsanitary conditions: Mites thrive in unsanitary environments. Cats that live in crowded, dirty conditions are more prone to mites.

Symptoms of Mites

The most common symptoms of mites in cats include intense itching and scratching, hair loss, and crusty skin. Mites cause irritation that leads cats to scratch, lick, and bite at their skin constantly. This self-trauma results in hair loss and open sores that can become crusty as they heal. Areas most affected include the head, neck, ears, and feet.

Ear mites often lead to intense itching of the ears. Affected cats will shake their heads and scratch at their ears. You may see a dark, crumbly discharge in the outer ear canal. Otodectic mange leads to inflammation and crusting around the ears and face.

Notoedric mange causes severe itching all over the body. Hair loss typically begins on the face and ears before progressing down the body. The skin becomes thickened and crusty. Notoedric mange is highly contagious between cats.

Mites are irritating to cats and cause significant discomfort. Intense itching and scratching are the hallmark signs of a mite infestation. Take your cat to the veterinarian if you notice these symptoms to get an accurate diagnosis and treatment.

Diagnosing Mites

If you suspect your cat has mites, the diagnosis will need to be confirmed by a veterinarian through a skin scraping exam. During this exam, the vet will use a scalpel blade or curette to gently scrape the skin and collect skin cells and debris. This sample is then examined under a microscope to look for the presence of mites.

Mites can be difficult to find because of how small they are. Often a skin scraping needs to be taken from multiple areas before mites will be detected in the sample. Common areas vets will collect samples from include behind the ears, the neck, elbows, hocks and the lower back.

In addition to doing skin scrapings, your vet will likely ask about your cat’s symptoms and do a full body exam looking for any skin irritation, redness, scabs or hair loss which can indicate mites. The type of mite present can help determine the treatment plan.

Some of the most common mites that infest cats include:

– Ear mites (Source 1)

– Fur mites ()
– Notoedric mange mites (
Source 3)

Skin scrapings examined under the microscope are the gold standard for diagnosing mites in cats. This test allows the vet to identify the type of mite infesting your cat so that proper treatment can be provided.

Treating Mites

There are several effective options for treating mites in cats:

Antiparasitic medications like selamectin (Revolution), fipronil (Frontline), and ivermectin are commonly prescribed to kill mites. These medications are applied topically or given orally in regular doses over several weeks to eliminate mites [1].

Lime sulfur dips can also help kill mites on the skin and coat. Cats may need to be dipped weekly for several weeks under veterinary supervision. This helps remove dead mites and eggs and prevents spreading [2].

The cat’s environment must also be treated by thoroughly washing bedding, vacuuming, and using antiparasitic sprays. This will help destroy any eggs and prevent reinfestation [3].

Treatment should continue for a few weeks after symptoms resolve to ensure all life stages of the mites have been eliminated.

When to See a Vet

It’s recommended to take your cat to the vet if you notice any skin changes like hair loss, scabs, rashes, or excessive scratching. These could be signs of a more serious skin condition that requires professional diagnosis and treatment.

For dandruff, it’s a good idea to visit the vet if the dandruff persists for more than a week or two despite home treatment, or if the skin becomes red, irritated, or infected. According to PetMD, see the vet immediately if your cat is rapidly losing fur, since this can indicate ringworm or other contagious conditions that require medication [1].

For mites, veterinary care should be sought right away. Mites spread easily between pets and can cause skin irritation, crusting, and hair loss. Only veterinarians can diagnose mites through skin scrapings, and prescription medications are required to fully eliminate mites, as PetMD explains [1].

In summary, while mild dandruff may be managed at home, significant skin changes, rapid hair loss, or the possibility of mites warrants prompt veterinary care for proper diagnosis and treatment.

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