Cat Gingivitis and Stomatitis: Causes, Signs and Treatment

Bad breath in a cat is not normal and does not simply mean she ate something odd. Gingivitis and stomatitis are among the most common reasons cats refuse food in Egypt, especially adults fed only soft food with no dental care. The pain is severe, yet cats do not cry out; they pull their heads away and gradually stop eating. This guide explains the difference between the two conditions and how treatment works.
Gingivitis or stomatitis?
Gingivitis stays on the gum margin next to the teeth, appearing as redness and mild swelling that can resolve after a professional clean. Stomatitis is a widespread inflammation of the oral lining that may extend under the tongue, across the palate and into the throat, and it is often severely painful and chronic.
The most severe form is chronic feline gingivostomatitis, an immune-driven disease in which the body attacks tissue around the teeth. An affected cat may refuse all hard food and drool constantly, and many need most teeth extracted to control pain, a hard decision that can still save the cat’s quality of life.
What drives the inflammation
Plaque buildup starts most cases, hardening into tartar that irritates the gums and shelters bacteria. Calicivirus is strongly linked to stomatitis, as are feline leukaemia and immunodeficiency viruses. Some cats become allergic to the bacteria in their own mouth, so the immune system, not the germ, becomes the real problem.
Other diseases show up in the mouth: kidney failure causes ulcers and a urine-like smell, diabetes worsens gum inflammation, and B-vitamin deficiency can cause sores. Treating the mouth alone is therefore not enough; the underlying disease must be found. A licensed veterinarian should identify the cause through examination and testing.
- Plaque and tartar accumulating on the teeth.
- Calicivirus, feline leukaemia and immunodeficiency viruses.
- An immune reaction to mouth bacteria.
- Kidney disease, diabetes and vitamin deficiency.
- Broken teeth or food trapped between the molars.
Signs owners notice at home
The first sign is usually a strong, rotting mouth odour, followed by drooling that leaves marks on bedding or the chest. A cat may start eating, then stop and shake her head, or pick food up with only one side of the mouth. Some cry while yawning or refuse to let anyone open their mouth.
Advanced cases show rapid weight loss, low activity and hiding in cool corners, and food may drop from the mouth after chewing. Never force a cat’s mouth open, because it causes severe pain and you may be bitten. A simple phone photo taken during a yawn helps the vet with an initial assessment.
Diagnosis and veterinary treatment
A full mouth exam needs light anaesthesia, because an awake cat will not allow a view of the back molars. The vet assesses gums and soft tissue and may request dental X-rays to find dead roots and abscesses. In recurring cases a swab or biopsy rules out tumours and fungal disease.
Treatment starts with a professional clean under anaesthesia and tartar removal, followed by extraction of damaged teeth when needed. The vet may prescribe antibiotics such as amoxicillin-clavulanate or metronidazole, pain relief and sometimes a short course of corticosteroids, always under veterinary supervision. Never give human painkillers such as paracetamol or ibuprofen, which are toxic to cats.
Home care and relapse prevention
After treatment, offer soft food at room temperature on flat plates to reduce pain, then move gradually to dental kibble if your vet agrees. Brushing with a pet toothbrush and enzymatic paste at least twice a week cuts plaque, and veterinary oral water additives can help between brushes.
Check weight and breath monthly, and book a mouth exam every six months for cats with a history of stomatitis. Support recovery with balanced nutrition and supplements from our vitamin and mineral range as prescribed, and avoid human table scraps or a soft-only diet. Our cats and dogs section helps you choose the right supplies.
Conclusion
Gingivitis and stomatitis are not just bad breath; they are chronic pain that stops a cat eating and damages other organs. Early diagnosis, professional cleaning and veterinary treatment prevent decline. Consistent home care is the difference between a healthy mouth and a cat that returns to the clinic every couple of months.
This article is general guidance and is not a substitute for examining your animal by a licensed veterinarian. In emergencies, contact your vet immediately.




