Stomatitis in Rabbits: Mouth Inflammation, Drooling, and Pain
- Stomatitis means inflammation inside the mouth. In rabbits, it often happens alongside dental disease, mouth trauma, infection, or painful ulcers.
- Common signs include drooling, wet fur under the chin, dropping food, smaller appetite, teeth grinding, weight loss, and trouble grooming.
- Rabbits can decline quickly when mouth pain keeps them from eating. Reduced food intake can lead to dangerous gut slowdown, so prompt veterinary care matters.
- Your vet may recommend an oral exam, sedation or anesthesia for a full mouth check, and skull X-rays to look for hidden tooth root disease or abscesses.
What Is Stomatitis in Rabbits?
Stomatitis is inflammation of the tissues inside the mouth. In rabbits, that can include the gums, cheeks, tongue, lips, and tissues around the teeth. It is not always a single disease by itself. More often, it is a painful mouth problem that develops because something else is irritating or damaging the oral tissues.
In many rabbits, stomatitis is linked to dental disease. Rabbit teeth grow continuously, and abnormal wear, malocclusion, sharp molar points, or infected tooth roots can injure the mouth and trigger inflammation. Mouth pain can make chewing difficult, so a rabbit may drool, drop food, or stop eating enough.
This matters because rabbits need to eat frequently to keep their digestive tract moving. A sore mouth can quickly turn into weight loss, dehydration, and gastrointestinal stasis. If your rabbit has a wet chin, reduced appetite, or seems painful while eating, it is worth having your vet check the mouth promptly.
Symptoms of Stomatitis in Rabbits
- Drooling or a constantly wet chin
- Saliva staining, matted fur, or hair loss under the mouth or dewlap
- Eating more slowly, dropping food, or chewing on one side
- Reduced appetite or refusing hay and pellets
- Weight loss or a thinner body condition
- Teeth grinding, hunched posture, or acting painful
- Bad breath, mouth odor, or visible sores
- Facial swelling, uneven jawline, or eye/nasal discharge
- Little to no fecal output along with not eating
A little moisture around the mouth is not normal in rabbits. Drooling usually means pain, trouble swallowing, or irritation in the mouth. See your vet promptly if your rabbit is eating less, losing weight, or has a wet chin that keeps coming back. See your vet immediately if your rabbit stops eating, produces very few droppings, seems weak, or develops facial swelling, because painful oral disease can quickly lead to gut slowdown and dehydration.
What Causes Stomatitis in Rabbits?
The most common underlying cause is dental disease. Rabbits have continuously growing teeth, and poor tooth alignment, overgrown incisors, sharp molar spurs, elongated tooth roots, and dental abscesses can all rub or puncture the soft tissues of the mouth. That irritation can cause ulcers, inflammation, drooling, and pain.
Diet also plays a big role. Rabbits need long-strand, high-fiber hay to create normal chewing motion and tooth wear. Diets that are too pellet-heavy or too low in hay can contribute to abnormal wear over time. Some breeds, especially dwarf and lop rabbits, are overrepresented for dental problems because skull shape can affect how the teeth meet.
Other possible causes include mouth trauma from rough feed or foreign material, bacterial infection, oral masses, chemical irritation, and toxin exposure. Some toxic products and plants can irritate the mouth directly. In a smaller number of cases, drooling may be related to neurologic or swallowing problems rather than primary dental disease, which is why a full exam is important.
How Is Stomatitis in Rabbits Diagnosed?
Your vet will start with a history and physical exam, including weight, hydration, appetite changes, fecal output, and a careful look at the face and mouth. Because rabbits have a small oral opening and the back teeth are hard to see when they are awake, a normal quick glance at the front teeth does not rule out a painful problem deeper in the mouth.
Many rabbits need sedation or anesthesia for a complete oral exam. This lets your vet inspect the cheeks, tongue, gums, and molars safely and with less stress. If dental disease is suspected, skull X-rays are commonly recommended to evaluate tooth roots, jaw bone changes, and abscesses that cannot be seen from the outside.
Depending on what your vet finds, additional testing may include a biopsy of an oral mass or ulcer, culture of infected material, or bloodwork to assess overall health before anesthesia and treatment. The goal is not only to confirm mouth inflammation, but also to identify the underlying reason so treatment can match the problem.
Treatment Options for Stomatitis in Rabbits
Spectrum of Care means you have options. Here are treatment tiers at different price points.
Budget-Conscious Care
- Office exam with weight and hydration check
- Pain-control plan if your vet feels it is appropriate
- Assisted feeding guidance and syringe-feeding support if eating is reduced
- Mouth and chin skin care for saliva scald
- Diet review with emphasis on hay intake and safer food texture adjustments
- Close recheck to monitor appetite, droppings, and comfort
Recommended Standard Treatment
- Full veterinary exam and oral assessment
- Sedation or anesthesia for a complete mouth exam
- Skull X-rays to evaluate cheek teeth, roots, and jaw changes
- Dental filing or burring of abnormal teeth if indicated
- Medications selected by your vet for pain and infection risk when appropriate
- Nutritional support and home-care plan with scheduled rechecks
Advanced / Critical Care
- Hospitalization for dehydration, anorexia, or gastrointestinal stasis
- Advanced imaging or repeated radiographs when disease is complex
- Dental extractions for chronically abnormal or infected teeth
- Treatment of jaw abscesses or severe oral wounds
- Intensive assisted feeding, fluid therapy, and pain management directed by your vet
- Referral to an exotics-focused or dental-focused veterinarian when needed
Cost estimates as of 2026-03. Actual costs vary by location, clinic, and individual case.
Questions to Ask Your Vet About Stomatitis in Rabbits
Bring these questions to your vet appointment to get the most out of your visit.
- Do you think this is primary mouth inflammation, dental disease, or both?
- Does my rabbit need sedation or anesthesia for a full oral exam?
- Would skull X-rays help look for tooth root problems or an abscess?
- Is my rabbit eating enough to stay safe, or do I need assisted feeding at home?
- What signs would mean this has become an emergency before our recheck?
- If teeth need trimming, how often might repeat care be needed?
- Are there diet changes that could help reduce future dental wear problems?
- If this keeps coming back, when should we discuss tooth extraction or referral?
How to Prevent Stomatitis in Rabbits
Not every case can be prevented, especially when genetics or jaw shape are part of the problem, but daily husbandry makes a real difference. The most helpful step is feeding unlimited grass hay as the main part of the diet. Long-strand hay supports the side-to-side chewing motion rabbits need to wear their teeth more normally. Pellets should be more limited, and diet changes should be discussed with your vet.
Watch for subtle early signs. A rabbit that starts choosing softer foods, dropping hay, grooming less, or getting a damp chin may be showing mouth pain before severe disease is obvious. Regular weight checks at home can help you catch gradual loss sooner.
Routine veterinary exams matter too. Your vet can look for early dental changes, discuss breed-related risk, and recommend follow-up if your rabbit has a history of malocclusion or repeat drooling. Keep toxic products, topical flea medications meant for dogs or cats, and irritating plants away from rabbits, since some exposures can worsen oral irritation or overall illness.