Stomatitis in Cats – Causes, Signs, Diagnosis, Treatment & Prevention

Feline stomatitis is more common than you might think. Statistically, this disease affects around .7 to 4% of all cats, and it can be a painful, chronic, and debilitating medical condition. 

Stomatitis can be defined as the inflammation of the mouth tissues. The inflammation affects both the gums and the tissue around the teeth (periodontum). Some forms evolve differently and they affect the back of the mouth, particularly where the upper and lower jaws come together. 

In this article, we’ll look at anything from the causes of stomatitis in our feline friends to how this disease is diagnosed, how it’s treated, its prognosis, as well as some facts regarding how contagious it is. 

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Stomatitis in cats – Causes


The biggest problem when it comes to feline stomatitis is that it can be caused by several factors. There can be viral and bacterial factors involved, but inflammatory dental disease plays an important part, as well, such as periodontal disease. 

Plaque has bacteria and it appears that cats respond to it differently compared to other species. Some of these bacteria can directly attack the dental tissue. 

Various studies have suggested the involvement of Calicivirus in the disease, but there are other viruses that can considerably affect the cat’s immune system — such as FIV (feline immunodeficiency virus) and FeLV (feline leukemia virus). While there isn’t a direct correlation between these last two and the disease, they do play a role in its development. 

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Stomatitis in cats – Symptoms

Pain is the most important and common clinical sign of feline stomatitis. In some of the cases, the cat is incapable of opening his/her mouth to eat or even drink. In other situations, the cat might meow in pain when trying to eat. 

Other signs range from the cat’s refusal to eat to weight loss, bad breath, drooling, and lack of grooming – because it’s just as painful as eating. Pawing at the face or mouth and drooling can also be seen in some cats. 

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Diagnosing stomatitis in cats

Cats are extremely reluctant when it comes to someone opening their mouths and actually looking at the lesion. If the examination is particularly difficult, your feline buddy might have to be sedated. After all, one can’t rule out a dental abscess, for instance.

While the vet is going to perform a physical examination, some tests can be a little more specific — such as a CBC (complete blood cell count), a chemistry panel, tests for FeLV, FIV, or bartonellosis. 

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There’s no specific test that can diagnose feline stomatitis, but dental X-rays can at least rule out diseases such as periodontal disease, tooth root resorption, and a variety of others that can cause local inflammation. 

In some cases, a biopsy might be necessary to make the difference between a localized infection and oral cancer. 

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How to treat stomatitis in cats?

As disappointing as it might sound, there is no specific treatment developed for this medical condition at this point. There are many management techniques available, however, and with regular dental care, a cat with stomatitis can live for many years.

Antibiotics can be prescribed for a limited amount of time, but the symptoms often return after several weeks. 

Steroids are capable of reducing the inflammation in the cat’s mouth and they do provide some relief from the pain, but they lose their effectiveness over time and they have serious side effects (one of them being diabetes). 

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For cats who don’t seem to benefit from any long-term results from any treatment, there are things that can be done, but they are somewhat drastic. Cats can undergo surgery where their teeth are extracted and the excessive inflammatory tissue is excised. 

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About 80% of the cats that have this therapy performed recover, but some cats have to continue medical management anyway. 

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Stomatitis in cats – Prognosis

Feline stomatitis is a painful and debilitating disease that can be life-threatening in some situations. It is quite challenging to treat, but most cats respond well to a combination of medical management, dental care, and oral surgery. 

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Feline stomatitis – Homeopathy treatment

First of all, I’d like to emphasize the fact that homeopathic treatments are rarely effective in conditions where even synthetic drugs can’t do their job. You can’t treat cat stomatitis with alternative methods if you don’t know what the cat has or what has exactly caused the disease.

However, besides taking your cat to the vet for teeth cleaning on a regular basis, you can use products that boost your feline friend’s immunity. These range from anything from nutraceutical remedies to a fully balanced raw diet with zero grains and carbohydrates. 

Some natural anti-inflammatories that provide results are proteolytic enzymes and plant-derived sterols or sterolins, as well as fatty acids (omega 3’s). Antioxidant formulas might work, as well. 

Basically, giving your cat vitamins and minerals and products that can improve his/her immune response is the right way of going about things in this case. That’s even truer if the cat has FIV or FeLV. 

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Frequently asked questions about stomatitis in cats

Is stomatitis in cats contagious to dogs?

There’s no clear answer to this question as it depends on the pathogen. If it’s a bacteria or a virus that can cause a condition in dogs, yes. If it’s something like FIV, it’s very species-specific, meaning that it can’t lead to a case of stomatitis in a dog. 

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However, cats that have stomatitis can be contagious to other cats living in the same household. 

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Is stomatitis in cats curable?

It can be managed. There is no specific cure at this time, and while most cats respond well to surgical therapy, there’s no way of knowing whether that can happen to your cat. In any case, caring for a cat with stomatitis needs a lot of commitment and attention, so you’re going to have to be a responsible cat guardian. 

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Is stomatitis in cats genetic?

It seems that there is a genetic predisposition since some of the most affected breeds are Persians, Himalayans, as well as Somalis. However, most domesticated short and long-haired cats can develop it. 

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How to prevent stomatitis in cats?

Cats don’t like it when you try to brush their teeth, but your vet might still recommend that you rinse your cat’s mouth with a disinfectant at least once every couple of days. There are also some topical ointments that can prevent or reduce inflammation in your cat’s gums. 

Prevention is worth a pound of cure and everyone knows that. Ideally, you should keep tabs on your cat’s oral health as best as possible to see whenever he/she shows any of the symptoms we’ve described earlier. 

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What antibiotic treats stomatitis in cats?

Clindamycin and Clavamox are the most commonly prescribed antibiotics, and they sometimes call for long-term treatment (4 weeks or more). 

Recent studies have shown that cyclosporine (an immunosuppressive agent) is quite effective, especially in patients that haven’t received previous corticosteroids. 

This post contains affiliate links on some of the images. You can support this blog by trying out the products recommended in this article. 

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Cristina Vulpe is a licensed veterinarian who has been a cat owner since she was 12. She is passionate about giving useful advice to pet owners across the world. Her favorite topics range from pathology and novel therapies to infectious diseases and animal welfare. Her work has been featured in many online publications from The Pet Friendly House to Alpha Paw, Animal Wellness Magazine, and Currently, she is a Pet Content Specialist for IkoBrands.

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