If your rabbit has not eaten in 12 hours, you are past the warning stage. Act now.

🚨 This Is an Emergency

A rabbit's digestive system must keep moving. When food stops, everything stops — and it can become fatal within 24 to 48 hours. Do not wait to see if your rabbit "gets hungry later."

Why Not Eating Is an Emergency for Rabbits

Rabbits cannot vomit. Unlike dogs or cats who can bring something back up, a rabbit's digestive system only moves in one direction: forward.

When a rabbit stops eating, food sitting in the stomach and gut begins to ferment, dehydration sets in, and the normal gut bacteria die off — replaced by harmful ones that produce deadly gas and toxins. This condition is called GI stasis, and it is one of the most common causes of death in pet rabbits.

The progression is fast:

  • 0–12 hours: Reduced appetite. Your rabbit may still seem normal.
  • 12–24 hours: Full stoppage. No poop, no eating, lethargy begins.
  • 24–48 hours: Gas buildup, pain, risk of organ damage.
  • Beyond 48 hours: Potentially fatal without emergency intervention.

Time is tissue. Every hour you wait is an hour closer to a life-threatening situation.

What to Do in the First Hour

Step 1: Check for Poop

Look at the litter box. Are there new droppings in the last 2–3 hours? A rabbit who is still producing normal, round, dry droppings is still eating something. A rabbit with no new droppings at all is in trouble.

Normal poop: round, dry, slightly dark green, individual balls.
Abnormal: mushy, clumped, connected by string, or very small.

Step 2: Offer Favorite Foods

Put your rabbit's most-loved foods directly in front of them. This is not the time for healthy staples — it is the time for irresistible items:

  • Fresh cilantro or parsley (strong smell, appealing texture)
  • A small piece of banana
  • A strawberry
  • Fresh timothy hay (the smelliest, leafiest pieces)
  • Apple slices (no seeds)

If they eat even a small amount, keep offering every 15 minutes and monitor closely. Still call the vet — but you have a little more time.

Step 3: Check for Pain Signs

A rabbit in GI stasis pain will show some or all of these:

  • Hunched posture, refusing to stretch out
  • Grinding teeth (loud, not the soft tooth purring)
  • Bulging eyes, staring
  • Not moving, sitting in one spot for hours
  • Pot belly that feels tight or sounds hollow when tapped
  • Head pressing into a corner

Step 4: Start Support Care

While arranging vet care, do the following:

  • Simethicone: Give 1–2 ml (for an average adult rabbit) every hour for 3 hours. This is infant gas drops from any pharmacy — it is safe for rabbits and can help if there is trapped gas. This is not a substitute for vet care.
  • Keep warm: A rabbit in GI stasis cannot regulate body temperature well. Place a heating pad on low under a towel and put the rabbit on it. Do not make it hot — just warm.
  • Hydration: If your rabbit will drink from a bowl, offer water. Do not force fluids into their mouth unless a vet instructs you.
  • Critical Care: If you have powdered Critical Care formula (from your vet or emergency kit), mix a small amount with water and offer it by syringe. Even a few ml helps.

Step 5: Call the Vet — Right Now

Call your rabbit-savvy vet or emergency vet and say:

"I have a rabbit who has not eaten in [X hours] and is not producing stool. I believe this may be GI stasis. This is a medical emergency — I need to be seen today."

If your regular vet cannot see you today, go to an emergency rabbit vet. Do not wait until tomorrow. See our emergency vet directory to find a 24-hour rabbit vet near you.

What the Vet Will Do

At the emergency vet, here is what to expect:

  • Physical exam: Palpating the abdomen for gas, checking hydration, temperature, heart rate
  • X-rays: To see the state of the digestive system and locate any blockage or severe gas
  • Fluids: Subcutaneous or IV fluids to rehydrate
  • Pain medication: Meloxicam or similar to manage pain and inflammation
  • Motility drugs: Medications like cisapride to encourage gut movement
  • Critical Care via syringe: To provide nutrition while the gut recovers
  • Hospitalization: In severe cases, rabbits stay at the vet for monitoring, fluids, and repeated treatments

The cost can add up quickly. This is why having an emergency fund or rabbit-safe pet insurance is worth considering before an emergency happens.

Recovery at Home

Once your vet sends your rabbit home, recovery is not over. Here is how to support them:

  • Continue Critical Care for 24–48 hours as instructed, even if they start eating — their gut needs support
  • Offer hay constantly — the smellier the better (orchard grass or first-cut timothy)
  • Small, frequent meals of their favorite greens every 2–3 hours during recovery
  • Simethicone every 4–6 hours for another 12–24 hours if gas symptoms persist
  • Keep them warm but not hot
  • Monitor poop obsessively — count the droppings every few hours and track size
  • Limit handling — let them rest

See our Rabbit Health Checklist for daily monitoring habits that catch problems early.

How to Prevent This From Happening Again

GI stasis and appetite loss are often preventable. Review your rabbit's daily care:

Download and print our Emergency Checklist and keep it on your fridge — vet numbers, emergency supplies, and early warning signs all in one place.

🚨 When in Doubt, Go to the Vet

This guide is not a substitute for professional veterinary care. If your rabbit has not eaten in 12+ hours, is producing no droppings, or shows any signs of pain — get to a vet today. Even if you are not sure. Even if it costs money. Rabbits hide illness until it is advanced, and by the time they look really sick, the situation is already serious.