Rabbit GI Stasis: Symptoms, Treatment & Prevention

If your rabbit stopped eating, you're right to be concerned. GI stasis is one of those things that sounds like it should be minor — "the gut slowed down" — but it can actually kill a rabbit in 24 to 48 hours if it's not treated. We see it regularly at our Alhambra rabbit vet clinic, and the cases that go well are almost always the ones where the owner caught it early and didn't wait.

The good news is that with the right diet and care, most cases are preventable. And when it does happen, treatment is usually pretty straightforward if you get in quickly.

What's Actually Happening Inside

A rabbit's digestive system is designed to move constantly. Hay goes in, gets processed, poops come out. When that movement slows down or stops — for whatever reason — things go bad quickly. Food and gas start building up. Bacteria that are normally kept in check begin overgrowing, producing toxins. The rabbit feels terrible, so they stop eating, which makes the stasis worse. It becomes a spiral.

Vets call this "ileus." Rabbit owners usually just call it terrifying.

What Triggers It

The #1 cause, by far, is not enough hay. We can't stress this enough — rabbits need unlimited hay available at all times. It's what keeps the whole system moving. But there are other triggers too:

• Dehydration — especially in warmer months. In SoCal, this is more common than people realize during heat waves.
• Stress — new environment, construction noise, a new pet in the house, even a dog barking through the wall. Rabbits are incredibly sensitive to this stuff.
• Pain from something else — dental disease is a big one. If it hurts to chew, they eat less hay, and then the gut slows. We see this pattern a lot.
• Sudden diet change — switching foods too quickly
• Not enough exercise — rabbits stuck in small cages are more prone. They need room to move.
• Post-surgery — anesthesia slows the gut, which is why we always watch for stasis after procedures

What It Looks Like

The biggest red flag is simple: your rabbit stopped eating. For a rabbit, even a few hours without eating is significant. Their system isn't built to take breaks.

Other signs we tell owners to watch for:

• Droppings that are tiny, dry, or weirdly shaped — or no droppings at all. If you clean the litter box and it's empty, that's a problem.
• Hunched-up posture — sitting in a tight loaf with their eyes half-closed. They look uncomfortable because they are.
• Loud teeth grinding — this is a pain signal. It's different from the soft purring/tooth chattering that means they're happy. If you can hear it clearly, they're hurting.
• Bloated or hard belly — gas buildup. Some rabbits press their stomach against cool tile trying to get relief.
• Won't move, won't respond to treats — if the banana comes out and they don't care, something is wrong.

Rabbits are prey animals. They hide pain. So if they're showing ANY of these signs clearly enough for you to notice, it's already been going on for a while. Don't wait to see if it gets better on its own.

Why This Is Urgent

We're not being dramatic when we say this is an emergency. Here's what happens when a rabbit's gut stops:

• Harmful bacteria explode in population, pumping out toxins
• Gas builds up and causes severe pain — which makes them eat even less — which makes it worse
• The liver can start failing (hepatic lipidosis) within 24 hours if they're not eating
• Without treatment, it can be fatal in 24–48 hours

This is not a "let's see how they are in the morning" situation. If your rabbit hasn't eaten for 12 hours and is showing other signs, call us at (626) 441-1314.

What We Do to Treat It

Treatment depends on how far along things are, but here's what a typical GI stasis visit looks like:

• Fluids — subcutaneous or IV, depending on how dehydrated they are. This alone can sometimes get things moving again.
• Pain medication — this is critical. A rabbit in pain won't eat, and if they don't eat, the stasis doesn't resolve. Breaking the pain cycle is usually step one.
• Motility drugs (cisapride or metoclopramide) to help restart gut movement
• Syringe feeding with Critical Care or similar — keeps fiber and calories going in while they recover their appetite
• Simethicone for gas — this is actually something you can pick up at any pharmacy and keep on hand at home
• X-rays if we're concerned about a true blockage, which is different from stasis and needs different treatment
• Belly massage — we'll show you how to do this at home between visits

Most rabbits recover well when we catch it early. And honestly, the early cases are straightforward — fluids, pain meds, motility drugs, and they're eating again within a day or two. It's the ones that waited 2–3 days that get complicated. Check our pricing page so you know what to expect.

Prevention (This Is the Important Part)

Almost every case of GI stasis we see could have been prevented. Diet is everything:

• Unlimited timothy hay — this should be 80% or more of what they eat. Not pellets. Not treats. Hay. If your rabbit isn't eating much hay, that's a problem we should talk about.
• Fresh greens every day — romaine, cilantro, parsley, basil. About a cup per 2 lbs of body weight.
• Go easy on the pellets — about ¼ cup per 5 lbs for adults. A lot of rabbit owners overfeed pellets, and the rabbit fills up on those instead of hay. It's one of the most common mistakes we see.
• Water bowls over bottles — rabbits drink more from open bowls. More water = better gut motility.
• Skip the junk food — yogurt drops, seed treats, cereal, bread. These are marketed for rabbits but they're genuinely bad for them.
• Exercise — at least 3–4 hours of free-roam time daily. Movement keeps the gut moving too.
• Regular vet checkups — dental problems are one of the sneakiest causes of GI stasis, and we can catch them on exam before they cause a crisis

While We're Talking Rabbit Health: RHDV2

This is worth mentioning. RHDV2 (Rabbit Hemorrhagic Disease Virus 2) has been confirmed in California and it's spreading. It's highly contagious, often fatal, and it can affect indoor rabbits too — it spreads through insects and contaminated surfaces, not just direct contact.

There is a vaccine available. We carry it at SPAH and we think it's worth discussing at your rabbit's next visit, especially if you're in Southern California. It's a conversation we have with pretty much every rabbit owner who comes in.

GI stasis is one of those things that's scary when it happens but very manageable if you know what to look for and act quickly. Keep the hay flowing, watch the poops (yes, really), and if your rabbit stops eating — don't wait. We see rabbits at our Alhambra clinic and we'd rather see yours for a false alarm than a late-stage emergency.