# Why Is My Chinchilla Not Eating? Causes and What to Do If your chinchilla has stopped eating, the most likely culprits are dental disease, stomach or intestinal problems, or another painful illness. Chinchillas hide discomfort well, so appetite loss is often the first sign an owner notices. This article explains why is my chinchilla not eating, what to watch for, and when to call a veterinarian. This article is educational and is not a substitute for veterinary diagnosis or treatment. ## Quick Answer - A chinchilla that skips even one day of eating is a concern, because small pets decline fast when they stop taking in food and water. - Dental disease is one of the most common reasons chinchillas see a veterinarian, and it often shows up as weight loss, reduced food intake, and drooling [1]. - Digestive upset, stress, and infections can also cause appetite loss, and some of these conditions are life threatening [2][3]. - Do not wait a few days to see if your chinchilla improves. Call an exotic-pet veterinarian the same day your chinchilla stops eating normally. - While you wait for your appointment, keep hay and water available, keep the room calm, and do not force-feed unless your vet tells you to. ## What Appetite Loss Looks Like in a Chinchilla A healthy chinchilla eats hay throughout the day and night. Chinchillas are crepuscular, meaning they are most active at dawn and dusk, so you may not see every meal. That makes it easy to miss the early signs. Watch for these changes: - Pellets or hay sitting untouched for a full day - Fewer or smaller droppings, or no droppings at all - Weight loss you can feel along the spine and hips - Drooling, wet fur under the chin, or pawing at the mouth - Hunched posture, scruffy fur, or unusual quietness A veterinarian looks for exactly these clues during an exam. Signs of disease in a chinchilla include weight loss, hunched posture, abnormal gait, scruffy fur, labored breathing, lethargy, and unresponsiveness to stimulation [2]. If you see any of these along with appetite loss, treat it as serious. ## Why Isn't My Chinchilla Eating? Main Causes ### Dental Disease and Malocclusion Dental disease is among the most common reasons chinchillas are brought to veterinarians [1]. Chinchilla teeth grow continuously, and hay is what wears them down. A diet heavy in pellets and light on hay lets the cheek teeth overgrow and misalign, a problem called malocclusion [4][1]. Most chinchillas with dental disease show weight loss, reduced food intake or complete anorexia, and drooling [1]. Chewing hurts, so your chinchilla may drop food, eat only soft items, or stop eating altogether. Periodontal disease, cavities, and tooth resorption are also common in chinchillas and are often missed during a routine mouth exam, even one done under anesthesia [1]. Proper diagnosis usually requires an endoscopy-guided exam of the mouth and imaging of the skull [1]. ### Digestive Problems and GI Stasis Chinchillas need constant fiber to keep the gut moving. When they stop eating, the digestive tract slows down, which causes more pain and more appetite loss. This spiral can become an emergency within a day or two. Several infections cause appetite loss along with gut signs. Chinchillas with clostridial enterotoxemia show loss of appetite, breathing difficulty, and diarrhea, and they can die within a few days of the first signs [2]. Giardiasis in pet chinchillas can cause a repeating cycle of appetite loss and diarrhea along with declining body and fur condition [2]. Stress and poor husbandry can allow parasite numbers to rise, leading to diarrhea and possibly death [2]. ### Pain, Stress, and Other Illnesses Pain anywhere in the body can shut down appetite. One report described an 11-year-old chinchilla with progressive weight loss, apathy, anorexia, changes in stool quality, and tail hair loss, later found to have a bone tumor in the lower spine [5]. Another report described a chinchilla that died after five days of lethargy and anorexia caused by a stomach tumor [6]. These are uncommon, but they show how many different problems can look the same from the outside. Stress matters too. Travel, a new home, a noisy room, or a change in routine can all reduce eating. A case report of a chinchilla herd found listeriosis, a bacterial infection, in pet chinchillas, with the first sign being lethargy and anorexia in one animal [3]. Infections like this can spread between animals, so a sick chinchilla should be separated from others until your vet advises otherwise. ### Cause Table | Cause | Typical clues | How urgent | |---|---|---| | Dental disease or malocclusion | Drooling, weight loss, dropping food, wet chin fur [1] | Urgent, see a vet within a day | | GI stasis or gut infection | Small or absent droppings, diarrhea, hunched posture [2] | Emergency, same day | | Stress or environment change | Recent move, new pet, noise, otherwise bright and alert | Same-day call, often settles with calm and routine | | Bacterial infection (for example listeriosis) | Lethargy, anorexia, sometimes death in the group [3] | Emergency, same day | | Internal mass or organ disease | Slow weight loss, weakness, changes in stool or urine [7][5][6] | Urgent, see a vet within a day | | Bladder stones from diet | Straining to urinate, appetite loss | Emergency if not urinating | ## Red Flags That Make It an Emergency Call an emergency or exotic-pet clinic right away if your chinchilla has any of these: - No eating for 12 to 24 hours, or no droppings in 12 hours - Labored breathing or open-mouth breathing - Lethargy or unresponsiveness to stimulation [2] - Hunched posture, lying on the side, or unable to stand normally [2] - Drooling with a wet chin and chest - Blood in the urine or straining to urinate - Seizure, collapse, or a body temperature that feels cold to the touch Chinchillas are prey animals. By the time one looks obviously sick, it has often been unwell for a while. Waiting even a day can change the outcome. ## What You Can Safely Do at Home While You Wait Your vet visit matters most, but a few steps can help in the meantime. - Keep fresh hay and water available at all times. Timothy hay is the backbone of a chinchilla diet because it encourages chewing and wears down the constantly growing teeth, and it supplies fiber for digestion [4]. - Keep the room quiet, dim, and cool. Stress makes appetite worse. - Do not offer treats to tempt your chinchilla. Fruits should make up less than 10% of the diet, and dried fruits, grains, seeds, and nuts can upset the stomach [4]. Carrots are high in sugar and should only be given rarely [4]. - Do not force-feed or syringe water unless your veterinarian instructs you. Doing it wrong can cause choking or aspiration. - Weigh your chinchilla if you have a small kitchen scale, and write down the number and the time of your last observation of eating and droppings. This information helps your vet. - If you have other chinchillas, keep the sick one separate and wash your hands between handling each animal. If your chinchilla is not eating and you also have a dog at home showing similar signs, our guide on [why is my dog not eating](/knowledge/veterinary-medicine/symptom-guides/why-is-my-dog-not-eating) covers the dog side of appetite loss. For reptile owners, [why is my snake not eating](/knowledge/veterinary-medicine/reptile-care/snake-not-eating) explains a very different set of causes. ## What Your Veterinarian Will Check and Test Expect a thorough exam, because chinchillas hide illness well. Your vet will: - Weigh your chinchilla and compare it to previous weights - Watch posture, movement, breathing, and response to handling [2] - Examine the mouth, often with an endoscope, since many dental problems are missed on a routine look [1] - Feel the abdomen for masses, gas, or tenderness - Check the teeth and skull with imaging such as X-rays [1] - Run blood work and a urinalysis to look for infection, organ problems, or metabolic issues [7] - Test stool for parasites or bacteria if diarrhea is present [2][3] Treatment depends on the cause. Dental disease may need tooth trimming or filing under anesthesia. Gut stasis needs fluids, pain control, and nutrition support. Infections need antibiotics chosen for the specific germ. Your veterinarian will calculate any medication dose from your chinchilla's weight and health status. ## Prevention and Daily Monitoring Most chinchilla health problems start with diet and environment. - Feed unlimited fresh grass hay every day, and store it in a dry, well-ventilated place [4]. - Use commercial chinchilla pellets as a supplement, not the main meal. Pellets crumble easily and do not wear down the teeth the way hay does [4]. - Skip alfalfa hay and high-calcium greens like kale, parsley, and dandelion greens, because they can cause bladder stones [4]. - Keep treats rare. A small slice of apple or pear now and then is fine, but fruit should stay under 10% of the diet [4]. - Weigh your chinchilla weekly on the same scale and keep a log. Slow weight loss is often the first sign of dental trouble. - Count droppings. A sudden drop in output is an early warning. - Keep the cage in a calm spot away from barking dogs and other predators, and avoid unnecessary travel since it is stressful for chinchillas [8]. - If you must travel, leave detailed care instructions and emergency contacts, and have your pet sitter practice handling your chinchilla before you go [8]. If you notice your chinchilla eating less but still active, a same-week checkup is reasonable. If eating has stopped, it is a same-day problem. Owners of other species sometimes face the same question, and our article on [when to worry when your dog won't eat](/knowledge/veterinary-medicine/vet-visit-decisions/dog-wont-eat-when-to-worry) walks through that decision for dogs. ## Limitations and When to Contact a Veterinarian This article cannot tell you what is wrong with your specific chinchilla. Only a veterinarian who examines your pet can do that, and individual cases always need professional care. Contact a veterinarian the same day if your chinchilla: - Has not eaten for 12 to 24 hours - Has few or no droppings - Is drooling or has a wet chin - Is losing weight - Seems quiet, hunched, or less responsive than usual Go to an emergency clinic immediately if your chinchilla: - Is breathing with its mouth open or struggling to breathe - Is limp, unresponsive, or having seizures - Cannot stand or is lying on its side - Has not urinated, or is straining to urinate - Has collapsed or feels cold If you are unsure whether it is an emergency, call the clinic and describe what you see. It is always better to call early. ## Frequently Asked Questions ### How long can a chinchilla go without eating? Not long. A chinchilla that stops eating can decline within a day or two, and some infections cause death within a few days of the first signs [2]. Treat any full day without eating as an urgent problem. ### Can stress make my chinchilla stop eating? Yes. Stress from travel, a new home, noise, or a change in routine can reduce appetite. Travel is stressful for chinchillas and is not recommended unless necessary [8]. If stress seems to be the trigger and your chinchilla is otherwise bright, call your vet for advice, but do not assume stress is the whole story. ### Should I force-feed my chinchilla? No, not without veterinary direction. Force-feeding the wrong way can cause choking or food in the lungs. Your vet can show you a safe technique or provide a special recovery food if it is needed. ### What foods should I avoid giving a sick chinchilla? Avoid dried fruits, grains, seeds, and nuts, because they can upset the stomach [4]. Skip carrots and other high-sugar items, and do not use alfalfa hay or high-calcium greens like kale and parsley, which can lead to bladder stones [4]. Stick with grass hay and water unless your vet says otherwise. ### Will my chinchilla start eating again on its own? Sometimes, if the cause is mild stress or a brief upset. Often it will not, because pain or a gut slowdown keeps the problem going. If your chinchilla has not eaten normally for a full day, see a veterinarian instead of waiting for it to pass. ## Related Articles - [Chinchilla Respiratory Infections: Causes, Signs, and Treatment](/knowledge/veterinary-medicine/small-mammal-care/chinchilla-respiratory-infections-causes-signs-treatment) - [Why Is My Chinchilla Drooling? Causes and When to Worry](/knowledge/veterinary-medicine/small-mammal-care/chinchilla-drooling-causes) - [Why Is My Chinchilla Not Moving? When to Get Help Fast](/knowledge/veterinary-medicine/small-mammal-care/chinchilla-not-moving-emergency) - [Why Is My Chinchilla Eating Its Poop? Coprophagy Explained](/knowledge/veterinary-medicine/small-mammal-care/why-chinchilla-eats-poop) ## References 1. [Anatomy and Disorders of the Oral Cavity of Chinchillas and Degus](https://pubmed.ncbi.nlm.nih.gov/27497209/). The veterinary clinics of North America. Exotic animal practice, 2016. 2. [Chinchillas - Exotic and Laboratory Animals](https://www.merckvetmanual.com/exotic-and-laboratory-animals/rodents/chinchillas). Merck Veterinary Manual. 3. [Listeriosis in a chinchilla herd - a case report](https://pubmed.ncbi.nlm.nih.gov/32823352/). Tierarztliche Praxis. Ausgabe K, Kleintiere/Heimtiere, 2020. 4. [Diet for a Chinchilla - All Other Pets](https://www.merckvetmanual.com/all-other-pets/chinchillas/diet-for-a-chinchilla). Merck Veterinary Manual. 5. [Lumbar osteosarcoma in a chinchilla (Chinchilla laniger)](https://pubmed.ncbi.nlm.nih.gov/18631221/). The Journal of small animal practice, 2008. 6. [Infiltrative gastric adenocarcinoma in a chinchilla (Chinchilla lanigera)](https://pubmed.ncbi.nlm.nih.gov/22621945/). Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc, 2012. 7. [Concomitant Congenital Diaphagmatic Hernia (CDH) and bilateral bacterial glomerulonephritis in a pet chinchilla (Chinchilla lanigera)](https://pubmed.ncbi.nlm.nih.gov/34861870/). BMC veterinary research, 2021. 8. [Special Considerations for Chinchillas - All Other Pets](https://www.merckvetmanual.com/all-other-pets/chinchillas/special-considerations-for-chinchillas). Merck Veterinary Manual. ## Further Reading - [American Veterinary Medical Association: First Aid Tips for Pet Owners](https://www.avma.org/resources-tools/pet-owners/emergencycare/first-aid-tips-pet-owners) - [Merck Veterinary Manual: Chinchillas](https://www.merckvetmanual.com/all-other-pets/chinchillas)