Gas in Rabbits: Symptoms, Causes, Treatment & When to Call the Vet
Reviewed by Lucile Moore, PhD
Last updated: February 2026
If you share your life with rabbits, you know how quickly a happy, hungry bunny can become quiet and uncomfortable. One of the most common causes of sudden discomfort in rabbits is gas buildup in the digestive tract.
Gas can range from mild and temporary to severe and life-threatening. Knowing the difference — and knowing how to respond — can truly save your rabbit’s life.
Let’s walk through what causes gas, how to recognize it, how to help at home, and when it’s time for immediate veterinary care.
Can Rabbits Pass Gas?
Yes — rabbits absolutely pass gas. It’s a natural byproduct of fermentation in their hindgut.
However, when gas becomes trapped in the digestive system, it can cause significant discomfort and pain. In some cases, painful gas can progress into gastrointestinal (GI) stasis, which is a medical emergency.
What Causes Gas in Rabbits?
Gas isn’t usually caused by one single “bad” food. Instead, it’s often the result of how your individual rabbit’s gut bacteria respond to something.
Every rabbit has a unique gut microbiome. That’s why one bunny can eat a specific green daily with no issue, while another may develop discomfort from the same food.
Diet-Related Causes
Gas is more commonly triggered by:
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Muesli-style rabbit food (high in grains and starch)
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Sugary fruits in excess
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High-starch vegetables like corn or potatoes (which really shouldn't be fed to rabbits anyways)
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Sudden diet changes
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Switching pellet brands abruptly
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Overfeeding pellets
Hay should always make up the majority of a rabbit’s diet. A healthy rabbit diet includes:
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Unlimited grass hay
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A measured portion of plain pellets (no muesli)
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A variety of leafy greens
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Limited fruit or sugary treats
Introduce new foods slowly, one at a time, in small amounts.
Other Contributing Factors
Gas can also be triggered or worsened by:
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Lack of exercise
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Stress
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Dehydration
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Eating too quickly
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Antibiotic use
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Underlying illness
Some rabbits are simply more sensitive than others.
If gas episodes are frequent, a veterinary exam is recommended to rule out dental disease, chronic pain, or other health issues
Signs and Symptoms of Gas Pain
Gas can escalate quickly in rabbits. Early intervention matters.
Watch for:
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Loss of appetite
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Decreased activity or hiding
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Hunched posture
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Stretching out repeatedly
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Loud stomach gurgling
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Pressing belly to the floor
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Hard or tight abdomen
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Reduced or abnormal stool output
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Teeth grinding (pain grinding, not soft content purring)
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Body temperature below 100°F
A rabbit’s normal temperature is approximately 101–103°F.
A temperature under 100°F is concerning and requires veterinary guidance immediately.
Learning how to safely take your rabbit’s rectal temperature is an important skill every rabbit guardian should know. A simple flexi-tip digital thermometer and a small amount of lubricant are all that’s needed. If you are unsure how to do this safely, ask your veterinarian to demonstrate.
Low body temperature often indicates shock or advanced GI slowdown — this is not a “wait and see” situation.
At-Home Support for Mild Gas Episodes
If your rabbit is still alert, responsive, and not severely lethargic, you can try supportive care while contacting your vet for guidance.
1. Warmth
A warm compress can help relax abdominal muscles and relieve discomfort.
Options include:
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A microwavable heat pad (like a Snuggle Safe)
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A rice sock
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A warm water bottle (used in our Warm n' Cool beds or Water Bottle Covers)
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A heated bed area using an electric heating pad (always supervised)
Always:
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Ensure the heat source is warm, not hot
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Protect any electrical cords
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Make sure your rabbit can move away if they choose
Warmth is especially important if body temperature is dropping.
2. Gentle Abdominal Massage
Light, circular massage can help stimulate movement in the digestive tract. Use very gentle pressure — never press firmly. Here's an awesome tutorial on massaging your rabbit.
3. Encourage Movement
Gentle movement helps stimulate gut motility. If your rabbit is willing, encourage slow hopping around a safe space.
4. Simethicone
Infant gas drops (dye-free simethicone) can help break up gas bubbles. Many rabbit-savvy veterinarians recommend keeping this on hand. You can purchase them at any local pharmacy.
Always confirm dosage and use instructions with your veterinarian before administering.
5. Herbal Support
Targeted herbal blends that include carminative herbs (like fennel, dill, chamomile, ginger, etc.) may help support digestive comfort and encourage appetite during mild episodes. Our Gas Forage is a holistic mix of nourishing herbs formulated to help reduce gas and therefore ease the pain from bloating. This is a wonderful tonic blend which can be offered daily to pets who frequently experience digestive issues that lead to painful gas episodes. It can also be used to help encourage eating during a gas episode or belly upset.
Our Gas Powder is another amazing tool to have on hand to help break down gas bubbles and alleviate gastric dilation (bloating). This powder includes all of the powerful herbs included in our Gas Forage + ginger powder for an extra soothing mix. You can mix with simethicone for combined holistic relief.
A Note About Meloxicam (Important)
Many rabbit guardians work with their veterinarian to keep meloxicam (a rabbit-safe anti-inflammatory pain medication) on hand for emergencies.
Having a prescription available can be lifesaving.
However, you should always call your veterinarian before administering meloxicam during a gas episode.
There are situations where giving meloxicam may not be appropriate — especially if your rabbit is:
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Severely dehydrated
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Hypothermic
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In shock
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Experiencing kidney compromise
Your vet can advise whether to administer at home or bring your rabbit in immediately.
Pain control is crucial in rabbits, but it must be used appropriately and safely.
When to Go to the Vet Immediately
Seek urgent veterinary care if your rabbit:
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Refuses all food
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Produces no stool
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Has a hard, distended abdomen
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Is severely lethargic
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Has a temperature below 100°F
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Appears weak, wobbly, or unresponsive
Gas can quickly transition into GI stasis or bloat. Rabbits deteriorate faster than many people realize.
When in doubt — call your vet.
Prevention: The Best Medicine
The good news? Many gas episodes are preventable.
Prioritize Fiber
Unlimited hay is the foundation of digestive health.
Avoid Muesli
Choose plain, uniform pellets only.
Introduce New Foods Slowly
One at a time, in small amounts.
Encourage Daily Exercise
Movement keeps the gut moving.
Reduce Stress
Stable housing, enrichment, and bonding help protect gut health.
Monitor Daily Habits
Pay attention to:
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Appetite
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Water intake
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Stool size and quantity
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Energy levels
Support the Gut Microbiome
For rabbits prone to digestive sensitivity, thoughtfully formulated supplements — whether in forage or treat form — can help support digestive balance and overall gut resilience. While never a substitute for a proper hay-based diet and veterinary care, targeted supplementation can be a helpful addition to a proactive wellness routine. We offer a variety of rabbit-safe supplements designed to support everyday health and comfort.
The earlier you catch subtle changes, the easier they are to manage.
Final Thoughts
Gas in rabbits is common — but it should never be dismissed.
With the right diet, exercise, monitoring, and a prepared emergency plan (thermometer, simethicone, vet contact, and potentially prescribed meloxicam), you can respond quickly and confidently.
Your awareness is your rabbit’s greatest protection.
If you ever feel unsure, trust your instincts and call your rabbit-savvy veterinarian.
4 comments
My rabbit stopped pooping and stomach bloating, what should I do,
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The Well Kept Rabbit replied:
> Not pooping or eating for 12-24 hours is an emergency for rabbits, especially with bloat. Please take your bunny to his/her rabbit savvy vet as soon as possible. Wishing you and your little one the best of luck.
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Hi,i have a female rabbit aged 4. i think she might have megacolon she is always getting Gi stasis SHE’S HAD IT MORE TIMES THEN I CAN COUNT…We feed her oxbow pellets ,oaten hay ,And grass .We stopped giving her greens as they were causing gas.. What would you recommend for her?
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The Well Kept Rabbit replied:
Hi Kerryanne! I do have a couple of suggestions – there is a group on Facebook called "Genetic Megacolon Bunnies on Facebook” that I highly recommend but you do have to email them to join as it is a private group and they limit their members. The email is beaubinky@gmail.com. The other group is "Charlie Rabbits with Megacolon or Cowpile Syndrome”. Aside from those groups that will be helpful for megacolon specifically, I will also of course recommend that your girl be seen by a rabbit savvy vet if she has not already. A couple thoughts on her food: Supreme Selective brand has pellets that are extruded and these are much more tolerable, especially for megacolon rabbits. You may want to consider slowly switching her over to that brand. When you mention grass do you mean grass from the lawn? This may be something you want to temporarily discontinue as well to see if she gets less gas episodes. Teeth can also be a culprit and a number of other underlying issues which is why it is vital to see a rabbit savvy vet. Rabbit.org has a great vet searching tool on their website that you can use! Hope this helps!
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Any vitamin/multivitamine syrup for good digest for rabbit?
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The Well Kept Rabbit replied:
Hi Mansi! Thank you for reading our blog post and reaching out! When it comes to rabbits, multivitamin syrups are generally not necessary if they’re on a well-balanced diet. In fact, feeding the right diet is far more important for their health than supplementing with a multivitamin.
A high-quality pellet is essentially a multivitamin for rabbits, as it’s formulated to provide the essential nutrients they need. Choosing a good pellet is vital—look for one that is high in fiber, low in protein, and free of added sugars, seeds, or colorful bits. Combine this with unlimited fresh hay, clean water, and a variety of leafy greens to ensure your rabbit gets everything they need to thrive.
If you have any other questions, feel free to ask—I’m always happy to help! > >
If a rabbit is ppooping alot and having hard dark balls but seems to be having digestive distress, should I skip giving lettuce(romain). In people it can increase distress but what a bout rabbits?
what about pellets? hay, pellets and romaine lettuce are her main diet items?
Symptoms – making herself into a ball,turning in circles, or stretching out on the floor
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The Well Kept Rabbit replied:
Hi Barbara! It’s always a good idea to check with a trusted rabbit-savvy vet first. While romaine is a common and safe green to feed your rabbit daily, every rabbit is different, much like humans, and can have unique sensitivities to certain foods. You might want to try offering a variety of greens for her. We recommend a minimum of three different greens each day—such as romaine, parsley, and dill—and rotating them weekly if possible. This not only ensures a range of nutrients but also keeps things interesting for your rabbit—imagine eating the same food every day! If you’d like to discuss her diet further, including her hay and pellets, or if you have further concerns about her digestive issues, feel free to email me at anna@wellkeptrabbit.com. I’m here to help!
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