# Why Does My Rabbit Grind Her Teeth When Petted? Rabbits grind their teeth for two very different reasons. A soft, rhythmic grinding while you pet her often means she is relaxed and content, which owners call tooth purring. Loud, harsh grinding with other signs of discomfort usually points to pain, often from the teeth themselves. This article is educational and is not a substitute for veterinary diagnosis or treatment. ## Quick Answer - Soft, quiet, rhythmic grinding with a relaxed body and closed or half-closed eyes is usually contentment, not a medical problem. - Loud, crunching, or grating sounds, especially with drooling, a wet chin, or a hunched posture, suggest pain. - Rabbit teeth grow continuously, so dental disease is common and often painful [1]. - A rabbit that stops eating, drops food, or produces fewer droppings needs a veterinary visit quickly. - Never try to trim or file your rabbit's teeth at home. Trimming is a veterinary procedure, often done under anesthesia [1]. ## What Rabbit Teeth Grinding Looks Like Rabbit teeth grinding is called bruxism. The sound comes from the back teeth (premolars and molars) sliding against each other, and sometimes from the front incisors. Owners describe two versions. ### Tooth purring: the happy version Tooth purring is a soft, even, low-volume grinding or clicking. It tends to happen when your rabbit is settled, being petted, or resting after a meal. Her body is loose, her ears are relaxed, and she may close her eyes or lean into your hand. The sound is quiet enough that you might only notice it when you are close to her head. This is normal. It is one of several ways rabbits show comfort, along with flopping over, tooth chattering during grooming, and a relaxed loaf position. ### Pain grinding: the unhappy version Pain-related bruxism is louder and harsher. It sounds like crunching, grating, or grinding rocks. Your rabbit may sit hunched with her head pressed into a corner, grind while doing nothing else, or grind and then stop eating mid-chew. She may also grind while her belly is pressed to the floor, which can signal abdominal pain as well as dental pain. The key difference is not the sound alone. It is the sound plus the rest of her body language and appetite. ## Why Does My Rabbit Grind Her Teeth When I Pet Her? There are several possible reasons, and most of them are harmless. The table below separates the common causes and how quickly each one needs attention. | Cause | Typical clues | How urgent | |---|---|---| | Contentment (tooth purring) | Soft rhythmic grinding, relaxed body, eyes half closed, eating normally | Not urgent | | Dental malocclusion | Drooling, wet chin, trouble closing the mouth, dropping food, weight loss | See a vet within days | | Overgrown cheek teeth or spurs | Reduced food intake, reduced droppings, head tilt, pawing at the mouth | See a vet within days | | Dental abscess or bone infection | Facial swelling, eye discharge, bad breath, one-sided chewing | Same day | | Pain elsewhere (gut, bladder, joints) | Hunched posture, belly pressed down, straining, reluctance to move | Same day if not eating | | Stress or fear during handling | Grinding starts only when picked up, then stops when released | Not urgent, adjust handling | ### Dental malocclusion and overgrown teeth All rabbit teeth grow continuously throughout life, including the incisors and the cheek teeth [1]. Normal chewing wears them down. When the upper and lower teeth do not line up, a condition called malocclusion develops, and the teeth wear unevenly [1]. This is one of the most common inherited problems in rabbits and can affect both front and back teeth [1]. Malocclusion can show up in rabbits as young as 3 to 8 weeks old [1]. Young rabbits can also damage their teeth by biting cage wire [1]. Rabbits fed mainly pellets instead of hay are more likely to develop overgrown teeth because pellets do not wear teeth down the way hay does [1]. In a study of 90 rabbits with dental disease confirmed on CT scans, malocclusion was found in 63.3 percent [2]. Retrograde elongation of tooth roots was present in 53 percent of maxillary cases and 43.3 percent of mandibular cases, and dental abscesses were present in 63 percent [2]. When an abscess was present, osteomyelitis (bone infection) was found in 79 percent of those rabbits [2]. These are serious problems that do not resolve on their own. ### Diet and wear Tooth growth adapts to wear. In one study, rabbits fed a hay-only diet versus a low-wear gruel showed a linear relationship between growth and wear, meaning teeth grow faster when they are worn more [3]. Another study found that cheek teeth grew at 1.4 to 3.2 mm per week, which is higher than earlier reports [4]. Diet consistency and abrasiveness both affect tooth length and wear [4]. The practical message is simple. Hay is the main tool your rabbit has for keeping her teeth in shape. If she is not eating hay, her teeth are not getting worn down properly. ### Dental abscesses and secondary problems Dental disease in rabbits is not limited to the mouth. In the CT study, nasal cavity inflammation was found in 20 percent of rabbits with dental disease, and otitis media (middle ear infection) was present in 6.7 percent [2]. Dental inflammatory resorption was found in 40 percent [2]. This is why a rabbit with dental pain may also have eye discharge, a runny nose, or a head tilt. ### Other sources of pain Grinding can also signal pain outside the mouth. A rabbit with gut stasis, bladder stones, or arthritis may grind when handled or when shifting position. If the grinding comes with a hunched posture, a pressed-down belly, or a refusal to move, treat it as a pain sign and call your vet. If you want a deeper look at how dental disease develops in rabbits, see [Dental Disease in Pet Rabbits](/knowledge/veterinary-medicine/small-mammal-care/rabbit-dental-disease). If you are comparing grinding across species, our guide to [Why Is My Dog grinding teeth? Bruxism Dental Pain and GI Nausea](/knowledge/veterinary-medicine/symptom-guides/why-is-my-dog-grinding-teeth-bruxism-dental-pain-and-gi-nausea) covers the same two categories of causes. ## Red Flags That Make It an Emergency Call an emergency veterinary clinic right away if your rabbit has any of these: - Not eating at all for 12 hours or more, or not producing droppings. - Grinding that is loud and constant, with a hunched, tense posture. - Drooling or a wet chin that soaks the fur. - Facial swelling, a bulging eye, or discharge from the eye or nose. - Head tilt, circling, or loss of balance. - Difficulty breathing, open-mouth breathing, or blue gums. - Collapse, seizures, or severe weakness. Reduced food intake was the most common clinical sign recorded in a large review of rabbit dental disease cases, followed by reduced fecal output [5]. Both are early warnings. Do not wait for your rabbit to stop eating completely before you call. ## What You Can Do at Home While You Wait You cannot fix dental disease at home, but you can keep your rabbit stable and comfortable until the appointment. - Offer fresh hay and her usual greens. A rabbit that is still eating is in a better position. - Offer water in a bowl as well as a bottle. Some rabbits drink more easily from a bowl when their mouth hurts. - Keep the room quiet and warm. Stress makes pain worse. - Do not force food or water into her mouth unless your veterinarian tells you to. - Do not give human pain medications. Many are toxic to rabbits, and the dose depends on your rabbit's weight and health. Your veterinarian will calculate any medication dose. - Do not try to trim, clip, or file her teeth. This causes pain and injury, and trimming is a procedure done by a veterinarian, often under anesthesia [1]. - Track what you see. Write down when she last ate, how much, how many droppings she passed, and when the grinding started. This information helps your vet. If your rabbit is not eating or has stopped passing droppings, call your veterinarian the same day. Rabbits can decline quickly when they stop eating. ## What Your Veterinarian Will Check Your veterinarian will start with a full physical exam, including the mouth. Rabbits have a narrow oral opening, so a complete look at the cheek teeth often requires special instruments or sedation. Expect some of these steps: - Weight and body condition scoring. - Otoscope or endoscope exam of the cheek teeth. - Skull radiographs (X-rays) to look at tooth roots and elongation. - CT imaging in complex cases. In one study, CT identified malocclusion, root elongation, abscesses, and secondary ear and nasal disease that were not obvious on exam alone [2]. - Bloodwork if your rabbit is not eating or if anesthesia is planned. Treatment depends on what is found. Options include trimming or burring overgrown teeth under anesthesia [1], extracting diseased teeth, draining or treating abscesses, and managing pain. Dietary change is part of the plan. In a UK review of dental disease cases, tooth trimming was performed in 34 percent of cases, and dietary modification was recommended in 21.5 percent [5]. Dental radiography was performed in only 2.2 percent of cases, which suggests many rabbits were treated without full imaging [5]. Ask your veterinarian whether imaging is appropriate for your rabbit. If your rabbit needs anesthesia for a dental procedure, ask about her overall health first. Rabbits that are not spayed or neutered may have other reproductive risks worth discussing. Our article on [Spaying and Neutering Your Pet Rabbit](/knowledge/veterinary-medicine/small-mammal-care/rabbit-spaying-neutering) explains the timing and benefits. ## Prevention and Daily Monitoring You cannot prevent every case of malocclusion, especially the inherited form. You can lower the risk and catch problems early. ### Feed hay first Hay should be the main part of the diet. It provides the chewing action that wears teeth down [1]. Pellets alone do not wear teeth effectively [1]. A rabbit on a hay-based diet has a better chance of keeping her teeth at a healthy length. ### Check the mouth and chin weekly Look for drooling, a wet or stained chin, drooping lips, or uneven incisors. Run your eyes over the face for swelling. Weigh your rabbit monthly if you can. A slow weight loss is easy to miss. ### Watch eating and droppings Reduced food intake and reduced fecal output are the two most common signs recorded in rabbits with dental disease [5]. If either changes, act early. ### Know your rabbit's risk factors A cross-sectional study of 308 pet rabbits found a malocclusion frequency of 24.4 percent [6]. In that study, males had a higher adjusted prevalence ratio than females, and rabbits over 5 years old had a higher ratio than younger rabbits [6]. The authors suggested that senior male rabbits on a diet without hay would have a higher frequency of malocclusion than others [6]. Age, sex, and diet all matter, so keep up with dental checks as your rabbit gets older. ### Keep grooming and handling gentle Some rabbits grind when they are handled roughly or picked up incorrectly. Learn a calm, supported hold. Our guide to [Grooming Your Pet Rabbit](/knowledge/veterinary-medicine/small-mammal-care/rabbit-grooming) covers safe handling and coat care. ### Do not rely on chew toys alone Chew toys help, but they do not replace hay. If your rabbit has had dental work before, ask your veterinarian how often rechecks should happen. Our article on [Rabbit Care: Overgrown Dental Spurs & Tooth Trimming Guide](/knowledge/veterinary-medicine/exotic-small-animals/rabbit-care-overgrown-dental-spurs-tooth-trimming-guide) explains what to expect during and after a trimming procedure. ## Limitations and When to Contact a Veterinarian This article gives general information only. Every rabbit is an individual, and only a veterinarian who examines your rabbit can diagnose the cause of her grinding. Contact a veterinarian the same day if your rabbit: - Has stopped eating or is eating much less than usual. - Has stopped producing droppings or is producing very few. - Is drooling or has a wet chin. - Has facial swelling, eye discharge, or a head tilt. - Is grinding loudly and constantly. - Is hunched, pressing her belly down, or unwilling to move. Go to an emergency clinic immediately if your rabbit: - Is breathing with her mouth open or struggling to breathe. - Has collapsed, is having seizures, or cannot stand. - Has blue or pale gums. - Has severe bleeding from the mouth. Schedule a routine visit if your rabbit: - Grinds softly but has no other signs, and you want a baseline dental exam. - Has a history of dental work and is due for a recheck. - Is over 5 years old and has not had a dental exam recently. ## Frequently Asked Questions ### How can I tell tooth purring from pain grinding? Listen to the volume and watch the body. Tooth purring is soft and even, and your rabbit looks relaxed with loose ears and half-closed eyes. Pain grinding is loud, harsh, and often comes with a hunched posture, drooling, or a refusal to eat. ### Is tooth grinding always a sign of dental disease? No. Soft grinding during petting or resting is normal and usually means contentment. Dental disease is more likely when the grinding is loud, constant, or paired with other signs like a wet chin, dropping food, or reduced droppings. ### Can I trim my rabbit's teeth at home? No. Trimming is a veterinary procedure, and it is often done under anesthesia to reduce pain and stress [1]. Home trimming with clippers or files can crack teeth, cause bleeding, and make the underlying problem worse. ### Does a hay-only diet prevent dental problems? Hay is the most important part of a tooth-healthy diet because chewing it wears teeth down [1]. It lowers risk but does not guarantee perfect teeth, since malocclusion can be inherited and can appear in very young rabbits [1]. ### My rabbit grinds her teeth but is still eating. Should I wait? Do not wait if the grinding is loud or if she is eating less than usual. Reduced food intake is the most common sign recorded in rabbits with dental disease [5]. A veterinary exam can catch a problem before your rabbit stops eating entirely. ## Related Articles - [Dental Disease in Pet Rabbits](/knowledge/veterinary-medicine/small-mammal-care/rabbit-dental-disease) - [Spaying and Neutering Your Pet Rabbit](/knowledge/veterinary-medicine/small-mammal-care/rabbit-spaying-neutering) - [Grooming Your Pet Rabbit](/knowledge/veterinary-medicine/small-mammal-care/rabbit-grooming) - [Rabbit Care: Overgrown Dental Spurs & Tooth Trimming Guide](/knowledge/veterinary-medicine/exotic-small-animals/rabbit-care-overgrown-dental-spurs-tooth-trimming-guide) - [Litter Training Your Pet Rabbit](/knowledge/veterinary-medicine/small-mammal-care/rabbit-litter-training) - [Why Is My Rabbit Grinding Its Teeth? Normal or Pain?](/knowledge/veterinary-medicine/small-mammal-care/rabbit-teeth-grinding-meaning) - [Why Does My Rabbit Grunt or Vibrate When I Pet Him?](/knowledge/veterinary-medicine/small-mammal-care/rabbit-grunting-vibrating-when-petted) - [Why Does My Rabbit Make Grunting, Honking, or Squeaking Noises?](/knowledge/veterinary-medicine/small-mammal-care/rabbit-grunting-honking-squeaking-noises) ## References 1. [Dental Care of Rabbits - All Other Pets](https://www.merckvetmanual.com/all-other-pets/rabbits/dental-care-of-rabbits). Merck Veterinary Manual. 2. [Computed Tomographic Findings of Dental Disease and Secondary Diseases of the Head Area in Client-Owned Domestic Rabbits (Oryctolagus cuniculus): 90 Cases](https://pubmed.ncbi.nlm.nih.gov/38672307/). Animals : an open access journal from MDPI, 2024. 3. [The Relation Between Incisor Growth Rate and Minimal to Maximal Dental Wear in Rabbits (Oryctolagus cuniculus)](https://pubmed.ncbi.nlm.nih.gov/40961175/). Journal of veterinary dentistry, 2026. 4. [Growth and wear of incisor and cheek teeth in domestic rabbits (Oryctolagus cuniculus) fed diets of different abrasiveness](https://pubmed.ncbi.nlm.nih.gov/24700486/). Journal of experimental zoology. Part A, Ecological genetics and physiology, 2014. 5. [Dental disease in rabbits under UK primary veterinary care: Clinical management and associated welfare impacts](https://pubmed.ncbi.nlm.nih.gov/40178508/). The Veterinary record, 2025. 6. [Dental malocclusion and associated factors in pet rabbits: a cross-sectional study in Peru (2021-2022)](https://pubmed.ncbi.nlm.nih.gov/42002276/). New Zealand veterinary journal, 2026. ## Further Reading - [Merck Veterinary Manual: Rabbits](https://www.merckvetmanual.com/all-other-pets/rabbits)