Rabbit Not Eating? Don't Wait. This Is a Medical Emergency.

If you have a dog that skips a meal, you might reasonably wait a day before calling us. A cat that skips a meal gets about 24–36 hours before we start getting concerned. A rabbit that isn't eating? Contact us now. Not tomorrow. Not in a few hours "to see if she perks up."

Rabbits are different from dogs and cats in a very specific and important way: their digestive system must keep moving continuously, 24 hours a day. When it doesn't, things go wrong very quickly. GI stasis — the medical term for a slowdown or complete stop of gut motility — is one of the most common rabbit emergencies we see at our Alhambra clinic, and the window between "early stasis" and "critical" is much shorter than most owners realize.

What is GI stasis, exactly?

The rabbit's digestive tract moves food and cecotropes through almost constantly. Food goes in, hay keeps things moving, and cecal pellets (small soft droppings the rabbit re-ingests directly from their anus) provide critical nutrition from bacterial fermentation. It's a closed system that has to keep running.

When gut motility slows or stops, a few things happen:

• Gas accumulates in the cecum and intestines — causing significant, sometimes severe pain
• The cecum can become impacted, especially if the rabbit isn't eating enough hay
• Bacteria in the gut overgrow, producing toxins
• The rabbit stops eating because they're in pain, which worsens the stasis further — a downward spiral

A mild case can become a severe case in 12–24 hours. A severe case can be fatal if untreated. This is not a condition that resolves on its own without treatment.

Signs your rabbit is in GI stasis

Check for these specifically:

• Not eating hay, pellets, or fresh greens — any or all of these
• No fecal pellets, or very small/misshapen pellets — check the litter box. Healthy rabbits produce 200–300 small round dry fecal pellets per day. Stasis first shows up as fewer, smaller, or oddly shaped droppings — or none at all.
• Hunched posture — sitting in a tight loaf, not stretched out and relaxed as usual
• Teeth grinding (bruxism) — a sign of pain. Can be subtle.
• Hiding or avoiding contact
• Distended, hard, or "gassy" abdomen — careful, gentle palpation may reveal a tense or gas-filled belly

A rabbit doesn't have to be showing all of these to be in early stasis. "Not eating and fewer pellets in the litter box" is enough to call us immediately.

Why rabbits are so vulnerable

Unlike dogs and cats, rabbits can't vomit. Gas and material that accumulates in the gut can't go backward. It has to move forward or be treated medically. And rabbits are prey animals — meaning they instinctively suppress visible signs of illness for as long as possible. By the time a rabbit is showing obvious signs of distress, the condition is often more advanced than it looks.

We want to see rabbits early — at the "not quite right" stage — not at the "visibly in pain and can't move" stage. The earlier we see them, the more manageable the treatment.

Common triggers

Insufficient hay. This is the #1 underlying factor we see. Rabbits should eat unlimited timothy grass, orchard grass, or meadow hay as the majority of their diet — not primarily pellets, not primarily fresh vegetables. Hay provides the long-strand fiber that keeps the gut moving. Pellets are a supplement, not a staple. Fresh greens are an enrichment, not a primary diet.

Stress. A stressful event — a move, a new pet in the house, fireworks, a thunderstorm, a change in routine — can trigger stasis. Rabbits take their environment very seriously. After a known stressor, watch eating and litter box habits closely for 24 hours.

Dehydration. Particularly relevant in Southern California summers. Make sure fresh water is always available and accessible. Some rabbits prefer a bowl over a bottle — and many drink significantly more water this way.

Dental disease. Rabbit teeth grow continuously and can develop spurs, malocclusion, and painful points that make eating painful and reduce food intake. Dental disease is one of the most commonly missed causes of reduced appetite in rabbits. An annual dental exam (as part of a wellness visit) catches this before it causes a crisis.

Pain from another source. Urinary issues, arthritis (especially in older rabbits), reproductive conditions (in unspayed females — uterine cancer is very common) — pain from any cause can reduce appetite and trigger stasis.

What happens at the vet visit

We'll do a thorough physical exam, assess hydration, listen to gut sounds with a stethoscope (active gut sounds = better; silence = concerning), and palpate the abdomen carefully. X-rays are often taken to assess gas distribution and rule out a true blockage (which requires different treatment from simple stasis).

Treatment typically includes:

• Fluid therapy — IV or subcutaneous fluids to rehydrate and support gut motility
• Gut motility medications (e.g., metoclopramide, cisapride) to restart movement
• Pain management — meloxicam or buprenorphine. Pain relief is critical because a rabbit in pain won't eat, and a rabbit that won't eat stays in stasis.
• Syringe feeding if needed — Critical Care or similar high-fiber recovery food to get calories and fiber in while the gut restarts
• Simethicone may be used for gas

Most rabbits treated early improve significantly within 24–48 hours. Those seen late — after being in stasis for 24+ hours before coming in — have a harder and longer road. This is why timing matters so much.

What not to do at home

We know it's tempting to try something at home first before making the trip in. But a few things to avoid:

• Don't give simethicone and hope for the best. Gas relief doesn't address the underlying stasis. The gut isn't moving — simethicone alone won't fix that.
• Don't force-feed without guidance. Syringe feeding incorrectly can cause aspiration. We'll show you how if needed.
• Don't give pain meds designed for other animals. Ibuprofen and Tylenol are toxic to rabbits. Nothing not prescribed for rabbits should be given.
• Don't wait 24 hours hoping they improve. A rabbit should eat every few hours. 24 hours without food is already a late presentation.

We see rabbits and provide rabbit GI stasis treatment at South Pasadena Animal Hospital in Alhambra. Call (626) 441-1314 immediately if your rabbit isn't eating. Also check our exotic animal veterinary care page, our rabbit vet page, and pricing.

Frequently Asked Questions

How long can a rabbit go without eating?

Not long. Contact a vet if your rabbit hasn't eaten for 4–6 hours and isn't producing normal fecal pellets. A rabbit without food for 12–24 hours is in a dangerous situation.

What is GI stasis?

GI stasis is a slowing or complete stop of the rabbit's gut motility. Gas and cecal contents accumulate, causing pain and a worsening cycle of not eating → more stasis → more pain. It's a medical emergency that requires prompt veterinary treatment.

Can GI stasis be treated at home?

No — not safely or effectively. GI stasis requires pain management, fluid support, and gut motility drugs to treat properly. Home attempts delay proper treatment. Call a rabbit-savvy vet immediately.

How do I prevent GI stasis?

Unlimited timothy hay as the primary diet. Always fresh water available. Minimize sudden environmental stressors. Annual dental exams. Annual wellness exams to catch dental and other issues before they trigger a crisis.