What is gut stasis in rabbits?

Gut stasis (ileus) is when normal gut contractions slow or stop. Gas builds, pain rises, and appetite falls — a cycle that can become fatal within a day or two without treatment. It is one of the most common rabbit emergencies in the UK.

Can gut stasis kill a rabbit?

Yes. Untreated stasis can be fatal, often discussed in a 24–48 hour window, which is why UK welfare bodies treat reduced eating and droppings as urgent. Early vet care — pain relief, fluids, motility drugs — improves the odds. Home waiting is the risk.

How is gut stasis treated?

Vets typically use pain relief, gut motility medication, fluids and critical-care syringe feeding under their direction. They also look for the cause: dental spurs, gas, obstruction, post-operative pain or systemic disease. Do not copy a previous rabbit's leftover drugs.

How do I prevent gut stasis?

Unlimited good hay as the bulk of the diet, limited pellets, stress reduction, a bonded companion where possible, dental checks, and prompt vet care at the first sign of reduced eating or droppings. Annual myxomatosis and RVHD vaccination is separate welfare, not a stasis drug.

Should I wait to see if they eat overnight?

No. A rabbit that has not eaten hay or passed droppings for around 12 hours should see a vet, even if they still look 'quiet'. Quiet is how rabbits hide pain. The owner-facing version of this emergency is why is my rabbit not eating.

Rabbit Health

Rabbit Gut Stasis (Ileus) UK

Published 1 June 2026Last updated 13 August 20265 min read

Quick answer

Gut stasis (ileus) is when a rabbit's digestive system slows or stops — a common UK emergency. Signs include not eating hay, no droppings, a hunched posture and a bloated belly. Contact a vet today; do not wait overnight and do not start internet syringe-feeding on your own. Information only, not a diagnosis.

Key takeaways

Gut stasis (ileus) is when a rabbit's gut slows or stops — treat not eating or no droppings as an emergency, not a wait-until-morning problem.
Do not syringe-feed, give human gut medicines, or leftover antibiotics unless a vet has just told you to.
Prevention is hay-first nutrition, pain and dental checks, bonded housing, and vaccinations — stasis still needs a vet when it happens.

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Should you treat gut stasis as an emergency?

Yes. A rabbit that has stopped eating hay or passing droppings is not “off colour until morning”. UK welfare advice treats this as urgent because the gut must keep moving fibre; once motility drops, gas and pain make eating even less likely. Skip this explainer and phone a vet if they are already hunched, grinding their teeth, or the abdomen feels tight.

The owner question with the same stakes is why is my rabbit not eating?. This page is the condition: what ileus is, what vets do, and how to cut the next episode's odds.

What is gut stasis and how does it start?

Rabbits are hindgut fermenters. They need constant fibre — mainly hay — moving through the gut. When chewing or motility stops, gas accumulates and pain suppresses appetite further.

Common triggers, as described in UK rabbit-welfare and charity advice:

Sudden diet change or not enough hay
Dental pain that makes chewing hay uncomfortable
Stress — predators, fireworks, travel, a new home
Pain after surgery or from another illness
Dehydration or systemic disease

We do not invent a league table of “the top cause in the UK”. Dental disease and low-hay diets show up again and again in welfare writing; your vet still has to examine this rabbit.

What signs mean phone a vet today?

Sign	Action
No droppings for around 12 hours	Call the practice today — do not wait for a weekend appointment
Not eating hay, even favourite herbs	Emergency
Hunched, grinding teeth	Emergency (pain)
Bloated or hard abdomen	Emergency
Sitting still, hiding, or a dull coat with the above	Same — quiet is not “fine”

Flystrike in warm weather is a different emergency with overlapping “not moving much” signs. Check the rear. See flystrike prevention and when to see an emergency vet.

What will the vet actually do?

Typical hospital or consult care includes:

Pain relief first — a painful gut will not start because you offered a herb
Gut motility medicines prescribed for this patient, not a leftover bottle
Fluids under the skin or into a vein
Critical-care syringe feeding when the vet has ruled out a blockage that must not be force-fed
Dental examination and treatment of spurs or overgrown teeth
Imaging if they suspect obstruction or another surgical problem

Never give human laxatives, simethicone from a parenting forum, or another pet's antibiotics. Out-of-hours clinics that see rabbits are listed under exotic / rabbit-friendly filters when the practice publishes that they see rabbits — still phone to confirm before you drive.

How do you cut the risk of the next episode?

After discharge, follow the vet's feeding plan exactly. Long-term prevention in UK welfare guidance centres on:

Hay as the majority of the diet — unlimited good-quality grass hay; pellets as a measured extra, not a bowl of mix
Water always available; wet veg does not replace it
Bonded, neutered companionship where possible — loneliness is a stressor
Space to run — RWAF publishes minimum housing standards; a cramped hutch is not “cosy”
Dental checks with a rabbit-savvy vet
Annual vaccination against myxomatosis and RVHD — not a stasis treatment, still essential. See rabbit RVHD

Heat in UK summers without shade can stop eating; see rabbit summer care.

How is this different from a dog that skips a meal?

A healthy dog can often miss one meal and still be bright. A rabbit that misses hay is already in a different risk category because the gut is built to keep moving. That is why this site treats why is my dog not eating as a timed checklist and rabbit anorexia as same-day. Do not apply dog waiting rules to a rabbit. If you keep both species, use two phone scripts.

Head tilt, rolling, or a wet soiled bottom can sit alongside stasis or be a separate emergency. Do not pick one label and ignore the other. See rabbit head tilt and flystrike if those signs are present.

Who should skip home monitoring?

Anyone whose rabbit already has an empty hay rack and an empty litter tray, or who is about to order “critical care” online instead of calling. Also skip waiting if they recently had surgery, are a baby rabbit, or you can see fly eggs. Phone the practice or the out-of-hours directory. This page will still be here after they have pain relief on board.

Sources & further reading

Facts in this guide are rewritten in plain English from publicly available UK advice. We name the organisation where a specific point comes from their guidance. Links below go to the original pages — use them to read the source material directly.

PETHEALTH+ is independent. These organisations do not sponsor, approve, or partner with this website. Guidance checked against sources listed below (last updated 2026-08-13).

Frequently Asked Questions

What is gut stasis in rabbits?: Gut stasis (ileus) is when normal gut contractions slow or stop. Gas builds, pain rises, and appetite falls — a cycle that can become fatal within a day or two without treatment. It is one of the most common rabbit emergencies in the UK.
Can gut stasis kill a rabbit?: Yes. Untreated stasis can be fatal, often discussed in a 24–48 hour window, which is why UK welfare bodies treat reduced eating and droppings as urgent. Early vet care — pain relief, fluids, motility drugs — improves the odds. Home waiting is the risk.
How is gut stasis treated?: Vets typically use pain relief, gut motility medication, fluids and critical-care syringe feeding under their direction. They also look for the cause: dental spurs, gas, obstruction, post-operative pain or systemic disease. Do not copy a previous rabbit's leftover drugs.
How do I prevent gut stasis?: Unlimited good hay as the bulk of the diet, limited pellets, stress reduction, a bonded companion where possible, dental checks, and prompt vet care at the first sign of reduced eating or droppings. Annual myxomatosis and RVHD vaccination is separate welfare, not a stasis drug.
Should I wait to see if they eat overnight?: No. A rabbit that has not eaten hay or passed droppings for around 12 hours should see a vet, even if they still look 'quiet'. Quiet is how rabbits hide pain. The owner-facing version of this emergency is why is my rabbit not eating.