Scabs on Cats? What Causes Them and How to Treat Them

The post Scabs on Cats? What Causes Them and How to Treat Them by Melvin Pena appeared first on Catster. Copying over entire articles infringes on copyright laws. You may not be aware of it, but all of these articles were assigned, contracted and paid for, so they aren't considered public domain. However, we appreciate that you like the article and would love it if you continued sharing just the first paragraph of an article, then linking out to the rest of the piece on Catster.com.

Millet is a type of hardy, nutritious grass seed that has been cultivated by humans for thousands of years. It is highly adaptable, with a wealth of functions, providing food and sustenance for both livestock and humans. We say “it,” but actually millet is an umbrella term for at least 50 different varieties of this staple grain. They are drought resistant, have a rapid growth and harvest cycle, and usually gluten-free, so millets are experiencing a sort of renaissance among people with food allergies. But why are we going on about ancient agriculture? What does it have to do with scabs on cats?

It can be alarming to pet your cat and find scabs. This feline skin condition is miliary dermatitis, and it takes its name from scabrous sores that resemble millets. Like millet itself, this skin allergy affecting cats is not just one thing, but a symptomatic name that encompasses a range of potential allergens and reactions to them. Let’s look more closely at the possible reasons for scabs on cats and why they appear on your kitty’s back, neck and tail.

First, what is feline miliary dermatitis?

You may be able to prevent scabs on cats before they happen. Photography by Anna Dudko/Thinkstock.

Because cat skin allergies have so many possible causes and provocations, what we refer to as miliary dermatitis goes by a number of names. Ones you may have heard include the feline acne, feline eczema, along with the colorful and nonspecific “blotch,” the highly descriptive “scabby cat disease,” as well as flea allergy dermatitis. This last term describes the most common cause of scabs on cats and the one that confounds most cat owners. More on that in a moment.

There are a wide variety of causes of miliary dermatitis in cats, external and internal, but they express themselves in the same ways and with the same set of symptoms. We’ve mentioned scabs on cats, but these are only the most obvious and telling signs. Prior to the appearance of scabs on cats, you may notice your cat begin a regimen of outrageously excessive self-grooming. Now, cats spend nearly half their waking life licking and cleaning themselves, so is there a distinction?

With dermatitis, skin inflammation’s first yield is an itchy rash, which can be difficult to perceive, depending on the length of a cat’s coat. One sure symptom of miliary dermatitis? Repeated attention to — licking, scratching or biting — a specific and localized area. As the rash spreads, a cat may not only groom obsessively, but begin balding at those sites. Areas typically affected are the neck and the spot where the tail meets the trunk.

What causes cat dermatitis?

Allergies themselves, then, do not cause scabs on cats at the back, neck and the base of the tail, but by the cat’s singleminded focus on getting relief from the allergy. The more intently a cat scratches, licks and bites at himself, and the longer the condition progresses, the more those telltale scabs will form. When it comes to scabs on cats, scratching at the scabs clears a path for further, secondary infections by usually harmless bacteria that live on cats.

Now, there are rashes and lesions present prior to the cat’s self-grooming traumas, and these arise from a number of possible agents. Things that can cause these allergic reactions and start the ball rolling toward scabs on cats:

• Materials in new bedding, carpets, rugs or other home furnishings
• An ingredient or ingredients in cat food
• Seasonal allergens, like pollen
• Common household chemicals, including cat shampoo
• Mites, such as a sudden proliferation of ear mites or Cheyletiella (walking dandruff)
• Fleas and flea bites

By far, the most common cause of miliary dermatitis in cats and the scabs on cats that accompany the condition is the bite of a flea.

Flea allergy dermatitis in cats

Since a huge number of domestic cats spend most of their time indoors, we can anticipate the cries of protest and alarm. How can a cat express allergic reactions to fleas if she has no fleas? If the home is regularly cleaned? If the cat is taking preventative medication or wears a flea collar? For cats with flea allergies, especially those with sensitive skin, or younger cats and kittens with still-developing immune systems, the distinction between having fleas and being bitten by a flea is inconsequential.

All cats, indoor cats in particular, are fastidious groomers. Their rigorous cleaning routines mean that even cats who encounter fleas occasionally will not necessarily have them crawling and bouncing all over her body. In other words, a cat does not need to “have fleas,” per se, to experience the ill effects of a bite. If a cat gets out of the house during the warmer parts of the year when fleas are in abundance, even a brief period of supervised Caturday excitement can expose her to fleas.

For cats with sensitive skin, indoor cats with limited exposure to the natural world, or those whose homes are kept so immaculate that they don’t even wear flea collars, the saliva from a single flea bite is sufficient to provoke an allergic reaction. This condition, called flea bite hypersensitivity, is an increasingly common, if not the leading, cause of skin allergies among cats and dogs. It is also the first step toward the formation of millet-shaped scabs on cats — usually on cats’ backs, necks and tails.

Treating cat dermatitis and, in turn, treating scabs on cats

Diagnosing miliary dermatitis is fairly easy for a practiced veterinarian. The placement of the rash, lesions or scabs on cats — depending on how far advanced the problem is— gives a vet a clearer idea of the true source of the allergic reaction and a good start to a reliable method of treatment. Determining the precise source of your cat’s skin allergy is key.

For cats who already have sores from excessive grooming where flea bites are at fault, knowing that they have a flea allergy is no condemnation of you as a cat owner or your home cleanliness. Cortisone injections can help alleviate persistent itching, and, if necessary, antibiotics prescribed to treat existing wounds.

Your vet may counsel preventative measures once you have knowledge of the cat’s allergy. Indoor cats who like to venture outdoors supervised may be cautioned against it, or regular use of anti-flea prophylactics may be recommended. Implementing prevention strategies might see you and your cat changing your normal routine, but being consistent with the new routine will ensure your cat doesn’t suffer from recurrent bouts of miliary dermatitis.

Tell us: Have you ever seen scabs on your cat? How did you treat them? What was the cause of scabs on cats in your case?

Thumbnail: Photography ©chendongshan | Thinkstock. 

This piece was originally published in 2016.

Read more about cat skin health on Catster.com:

• 10 Common Cat Skin Problems
• Our Best Tips for Dealing With Seasonal Skin Allergies in Cats
• How to Help Cats with Skin Cancer

The post Scabs on Cats? What Causes Them and How to Treat Them by Melvin Pena appeared first on Catster. Copying over entire articles infringes on copyright laws. You may not be aware of it, but all of these articles were assigned, contracted and paid for, so they aren't considered public domain. However, we appreciate that you like the article and would love it if you continued sharing just the first paragraph of an article, then linking out to the rest of the piece on Catster.com.

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