GI Stasis: Recognising a Rabbit Emergency

Gastrointestinal stasis — commonly shortened to GI stasis or gut stasis — is the most common cause of death in domestic rabbits. It is a genuine veterinary emergency that can kill a healthy rabbit within 24–48 hours if untreated. Every rabbit owner must know the warning signs, understand the causes, and know when to act.

What Is GI Stasis?

GI stasis occurs when the normal muscular contractions (peristalsis) that propel food through the rabbit’s digestive tract slow dramatically or stop entirely. In a healthy rabbit, the gastrointestinal system is in near-constant motion — rabbits produce 200–300 droppings per day, 24 hours a day.

When the gut slows or stops:

1. Gas accumulates — bacteria in the cecum continue to produce gas from fermenting gut contents, but the gas cannot move through; it builds up, causing significant pain
2. Contents dehydrate — the static gut contents lose moisture and become progressively harder and more impacted
3. Bacterial toxins are released — the altered gut environment allows harmful bacteria to proliferate, releasing toxins
4. Pain causes anorexia — the rabbit stops eating and drinking entirely, worsening the stasis in a dangerous downward spiral
5. Organ failure — without intervention, toxin buildup, dehydration, and metabolic acidosis lead to fatal organ failure

Causes of GI Stasis

GI stasis is rarely a single-cause event. The most common contributing factors include:

• Insufficient fibre (hay) — the most common primary cause; without adequate long-strand fibre, gut contractions lose their stimulus
• Dehydration — thickens gut contents and reduces motility
• Stress — from pain, predator sights/sounds, a new environment, or a disrupted routine; cortisol suppresses gut motility
• Pain from another condition — dental disease, bladder sludge, or musculoskeletal pain can trigger secondary stasis
• Post-surgical — anaesthesia temporarily slows the gut; post-op care is critical
• Hairball obstruction — particularly during heavy moulting seasons
• Incorrect diet — excess starchy foods, insufficient hay, muesli mixes

Warning Signs of GI Stasis

Because rabbits hide illness, the signs can be subtle in the early stages. Check your rabbit daily — specifically:

Early Signs (Act Within 4–6 Hours)

• Fewer droppings than normal, or smaller droppings
• Reduced appetite — not finishing their greens or hay
• Decreased water intake
• Sitting in a “hunched” position (all four feet under the body, not stretching)
• Reluctance to move
• Mild teeth grinding

Later Signs (Emergency — Vet Immediately)

• No droppings for 6+ hours
• Complete refusal to eat anything
• Loud teeth grinding (indicating significant pain)
• Distended, tight, or bloated abdomen
• Lying flat and motionless, unwilling to move when touched
• Cold extremities

If your rabbit has not eaten or produced droppings for 6 hours, call an exotic vet immediately — even outside normal hours.

What NOT to Do

• Do not wait to see if they improve — stasis progresses rapidly; a rabbit that seems “just a little off” in the morning may be in a critical state by evening
• Do not give simethicone (Gas-X) alone and call it treated — simethicone can help with gas pain but does NOT treat the underlying cause; vet care is still essential
• Do not force-feed large amounts of food — small amounts of Critical Care may be appropriate under vet guidance, but forcing food into a rabbit with impacted gut contents can cause rupture
• Do not give pain medication without vet guidance — though pain management is important, the wrong medication can be harmful

Veterinary Treatment for GI Stasis

A vet treating GI stasis will typically:

1. Assess severity — physical examination, gut sounds with a stethoscope, possibly X-rays to check for gas distribution and obstruction
2. Administer pain relief — meloxicam (an NSAID) is the most common choice; pain management helps the rabbit relax and allows the gut to respond to treatment
3. IV or subcutaneous fluids — rehydration is critical for mobilising gut contents
4. Gut motility drugs — metoclopramide or ranitidine to stimulate gut contractions
5. Syringe feeding — Critical Care powder mixed with water, given in small amounts every 4–6 hours to provide calories and fibre
6. Assisted movement — gentle massage and encouraging movement helps stimulate the gut

Recovery time varies — mild cases may resolve in 24–48 hours with treatment; severe cases with ileus (complete shutdown) may require hospitalisation.

Monitoring After a Stasis Episode

Once your rabbit has recovered, monitor droppings closely for several weeks. A rabbit that has had one stasis episode is at higher risk of another. Ensure:

• Unlimited high-quality hay available 24/7
• Always-full fresh water bowl
• Correct, limited pellet quantity
• Minimal sugary treats
• Regular exercise to stimulate gut movement

The RabbitCare App

Catching GI stasis early depends on knowing what’s normal for your specific rabbit. The RabbitCare App (free on Android) includes daily health check logs for droppings count, appetite, and activity level — building a baseline so you can identify when something is off as early as possible.

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References & Sources

1. House Rabbit Society (HRS) — “GI Stasis: The Silent Killer” — rabbit.org
2. RWAF — “Gut Stasis in Rabbits” — rabbitwelfare.co.uk
3. PDSA — “GI Stasis in Rabbits” — pdsa.org.uk
4. Harcourt-Brown, F. (2002) — Textbook of Rabbit Medicine, Butterworth-Heinemann
5. Lichtenberger, M. & Lennox, A. (2010) — “Critical Care of the Rabbit” — Veterinary Clinics of North America: Exotic Animal Practice, 13(3)