Stomatitis (Red Sore Mouth)

Definition & symptoms

Stomatitis in pets refers to severe inflammation of the mouth’s mucous membranes, resulting in a red, sore mouth. It affects both cats and dogs, causing significant discomfort and making it difficult for them to eat, drink or open their mouths. The condition typically involves irritation and ulceration of the gums, lips, tongue and sometimes the throat.

Symptoms of stomatitis include drooling, bad breath, difficulty eating, irritability, weight loss, pawing at the mouth, and red, swollen or bleeding gums. Early diagnosis and treatment are crucial for your pet’s recovery. Common causes include dental disease, autoimmune disorders and allergies. In cats, Feline Chronic Gingivostomatitis (FCGS) is a frequent cause, while dogs can suffer from Canine Chronic Ulcerative Stomatitis (CCUS).

“Stomatitis can cause significant pain and make everyday activities like eating and drinking difficult for pets.”

Feline Chronic Gingivostomatitis (FCGS)

Stomatitis in cats is most commonly referred to as feline chronic gingivostomatitis (FCGS). It is a severe oral disease characterised by painful, prolonged inflammation extending beyond the gums to the soft tissues of the mouth. The exact cause remains unknown, but triggers may include viruses, bacteria, dental disease and hypersensitivity reactions.

The most effective treatment is full mouth extractions, which resolve symptoms in 60-80% of cases. For patients who don’t respond to extractions, medical management, such as immunosuppressant therapies, may provide relief. Supportive care, including pain management and nutritional support, is crucial for maintaining a good quality of life.

Canine Chronic Ulcerative Stomatitis (CCUS)

Stomatitis in dogs is most commonly referred to as Canine Chronic Ulcerative Stomatitis (CCUS). This immune-mediated condition is the result of an exaggerated response to plaque bacteria, leading to significant pain, reduced appetite, drooling and irritability. CCUS affects not only the gums but also the buccal mucosa, with friable, bleeding tissues and foul-smelling plaque.

Treatment focuses on strict plaque control, including professional dental care and home brushing. Full-mouth extractions are often effective, and medications are used for acute flare-ups. Supportive care, including pain management and nutritional support, is essential. Research into the causes and management of CCUS is ongoing.

FAQs

What are the common symptoms of stomatitis in pets?

Symptoms of stomatitis can include drooling, bad breath, difficulty eating, irritability, weight loss and pawing at the mouth. Pets may also develop red, swollen or bleeding gums due to inflammation affecting the mouth’s soft tissues.

What causes feline chronic gingivostomatitis in cats?

The exact cause of Feline Chronic Gingivostomatitis (FCGS) is unknown, but several triggers may contribute to the condition. These can include viruses, bacteria, dental disease and hypersensitivity reactions affecting the immune response inside the mouth.

Why are full mouth extractions recommended for FCGS?

Full mouth extractions are considered the most effective treatment for many cats with FCGS, resolving symptoms in approximately 60–80% of cases. Some cats may still require medical management, including immunosuppressant therapies, if symptoms continue after surgery.

How is Canine Chronic Ulcerative Stomatitis managed in dogs?

Treatment for Canine Chronic Ulcerative Stomatitis (CCUS) focuses on strict plaque control through professional veterinary dental care and home brushing. Full-mouth extractions are often effective, while medications may help manage acute flare-ups and ongoing discomfort.

Can stomatitis affect a pet’s ability to eat and drink?

Yes, stomatitis can make eating, drinking and opening the mouth painful due to severe inflammation and ulceration. Early diagnosis and treatment are important for improving animal oral health and helping pets maintain a better quality of life.

Key Takeaways

Painful Oral Inflammation

Stomatitis causes severe inflammation inside the mouth, leading to pain, redness and ulceration that can make eating, drinking and opening the mouth difficult for pets.

Symptoms Can Affect Daily Life

Common signs of stomatitis include drooling, bad breath, difficulty eating, weight loss, irritability and swollen or bleeding gums, all of which can impact your pet’s comfort and wellbeing.

FCGS Is Common In Cats

Feline Chronic Gingivostomatitis (FCGS) is a serious form of feline oral disease involving prolonged inflammation that extends beyond the gums into the soft tissues of the mouth.

CCUS In Dogs

Canine Chronic Ulcerative Stomatitis (CCUS) is linked to an exaggerated immune response to plaque bacteria, with treatment focused on plaque control, professional veterinary dental care and supportive management.

Next steps

For Pet Owners

Are you concerned about your pet’s dental health? Call 1300 866 848 or fill out the contact form. We’ll coordinate with your primary vet to ensure the best outcome.

For Vets & Nurses

We’re here to help. If you’d like to refer a patient, please call us at 1300 866 848 , complete the referral form or email us with a brief case summary, relevant radiographs and lab results.

For advice and treatment guidance, email us with a brief case summary, relevant radiographs and lab results.

 


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A vital pulpotomy is a time-sensitive procedure used to preserve the life of a tooth when the pulp becomes exposed due to trauma or dental treatment.

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This procedure, often used for tooth resorption, involves removing the tooth crown while leaving the resorbing root remnant intact. It’s less invasive and used in cases where traditional extraction is no longer possible. Regular follow-up is recommended.