Is My Bunny Sick? 10 Warning Signs Every Rabbit Owner Should Know
If you’ve noticed something seems “off” about your bunny lately — perhaps they’re not as active or skipping meals — it’s natural to worry. So how can you tell if your bunny might be sick? Here are 10 common signs of illness and injury in rabbits that every responsible owner should watch for.
TL;DR:
- Changes in appetite: Not eating or eating less than normal.
- Reduced water intake: Dehydration is serious in rabbits.
- Lethargy: Less playful, sleeping too much, or seems weak.
- Weight loss: Rapid changes in weight can signal illness.
- Unusual feces: Smaller, misshapen, fewer, or very soft droppings.
- Runny eyes or nose: Could indicate respiratory infections.
- Frequent sneezing or coughing: A red flag for respiratory illness.
- Behavioral changes: Withdrawn, aggressive, or out of character.
- Poor coat quality: Dull, patchy fur or excessive shedding.
- Open sores or wounds: Especially if they appear infected.
If any of these apply to your bunny, don’t wait — consult a vet and provide comfort and care at home to help your bunny recover.
1. Loss of Appetite: What to Do If Your Bunny Is Not Eating
When your bunny might be sick, changes in appetite are often the first red flag. Rabbits are grazers by nature — they nibble on hay and greens throughout the day. When your bunny suddenly stops eating or only picks at food, it’s a serious warning sign. A decrease in appetite could point to:
- Dental problems (e.g., overgrown teeth or abscesses)
- Gastrointestinal stasis (a dangerous internal slowdown)
- Infection or discomfort from injury
What to do if your bunny is not eating? Start by offering them their favorite leafy greens and observe their interest level. If appetite doesn’t return within 12 hours or if they stop producing droppings — this is an emergency requiring immediate vet care.
2. Changes in Water Intake
Is your bunny barely touching their water bottle or bowl lately? Dehydration can sneak up on rabbits and quickly create health hazards. Reduced water consumption might be linked to:
- Digestive problems or fever
- Bladder infections or kidney stress
- Pain that deters them from moving to drink
Try switching between a bowl and bottle—some rabbits prefer one over the other—and monitor intake to ensure they’re staying hydrated. Offer wet leafy greens to help increase water uptake.
3. Lethargy or Low Energy
Bunnies are naturally curious and alert. They may spend time napping, but they should still hop up when hearing familiar sounds or get excited at meal times. Signs of illness in bunnies include:
- Lying still for hours
- Showing weak body movements
- Not responding to interaction or stimulation
This is more than laziness — it may indicate pain, internal infection, or underlying illness. Call your vet if they seem unusually tired or unmotivated for more than 24 hours.
4. Sudden or Gradual Weight Loss
Weight loss in rabbits is subtle at first — often invisible until it becomes dangerously pronounced. You might notice their backbone feels more prominent when you pet them, or their face shape seems bonier. When your bunny might be sick with weight loss, common triggers include:
- Digestive diseases or parasites
- Dental pain affecting appetite
- Cancer or metabolic disorders
A home scale and simple weekly check-ins can help spot weight deviation early. Unintentional weight loss always warrants further investigation from a vet.
5. Abnormal Fecal Output
A bunny’s poop reveals crucial information about their gut health. It should be plentiful, evenly round, and firm (yet not hard). Warning signs of illness include:
- Very small droppings
- Mucousy or soft stools
- Scant output or nothing at all
These symptoms may signal GI stasis, one of the most dangerous conditions in rabbits. Always monitor both consistency and quantity. Fewer poops mean slower gut movement — a serious red alert in rabbit medicine.
6. Runny Eyes, Nose, and Respiratory Issues
Clear, wide-eyed expressions are a bunny’s daily look. When their eyes begin to water, crust, or show discharge, it’s time to pay attention. Signs of illness in bunnies to watch for include:
- Frequent sneezing
- Wheezing or clicking sounds when breathing
- Nasal discharge
These signs typically point to respiratory infections like Pasteurella (commonly called “snuffles”) which need prompt veterinary care and often antibiotics.
7. Behavioral Changes to Watch For
Ever notice your bunny suddenly acting grumpy, shy, or distant? Behavioral shifts are your bunny’s silent way of communicating illness. Changes may show up as:
- Hiding more than usual
- Avoiding touch or grooming
- Unusual aggression or biting
These behaviors can have physical or emotional roots, including pain, stress, or illness. Track when the change began and consult your vet for insights.
8. Coat Quality: The Subtle Clues in Fur
Healthy rabbits have glossy, clean coats. If that fur turns patchy, dull, or starts falling out more than normal, it may suggest:
- Fungal infections or parasites (like mites)
- Nutritional deficiencies
- Self-neglect due to pain or discomfort
You might notice bald spots or crusty skin underneath. A vet exam can confirm the cause and guide treatment — often involving topical medications or diet adjustments.
9. Sores, Wounds, or Skin Problems
Open wounds on a bunny should never be left to “heal on their own.” Due to their delicate skin and high infection risk, visible sores may worsen quickly. Common causes include:
- Injury from jumping or falling
- Fighting with other pets
- Pressure ulcers (from sitting still too long)
Monitor wounds daily, and contact a vet if it’s not healing or appears swollen, red, or weepy — infection spreads quickly in rabbits.
10. How to Help a Sick Bunny Recover at Home
You’ve spotted warning symptoms. Now what? While professional veterinary care should always be your first priority, here’s how to help a sick bunny recover at home:
- Keep them warm, quiet, and indoors if not already
- Encourage hydration with fresh water and soaked vegetables
- Offer soft hay and favorite foods to sustain appetite
- Clean eye or nose discharge gently with warm saline
Above all, follow your vet’s advice closely, and avoid over-handling until your bunny regains strength. Healing takes time — your empathy and consistency make all the difference in recovery.
Sea Stars Have Eyes at the Tips of Their Arms: How This Amazing Vision Works
Comparing Common Bunny Illness Symptoms
| Symptom | Possible Cause | Requires Vet Visit? |
|---|---|---|
| Not eating/pooping | GI stasis | Yes |
| Sneezing/runny nose | Respiratory infection | Yes |
| Weight loss | Parasites, cancer, dental | Yes |
| Hiding/withdrawal | Anxiety, pain, illness | Maybe |
| Scratching/dull coat | Mites or fungal infection | Yes |
FAQs
- How do I know if my rabbit is seriously ill?
If your bunny isn’t eating, pooping, or is completely lethargic for more than 12 hours, treat it as an emergency and seek vet care right away. - Can rabbits recover from illness at home?
Many minor issues can begin home care with your vet’s guidance, but major illnesses like GI stasis or respiratory infections need medical treatment. - Is it normal for my bunny to be less active in summer?
Rabbits may slow down in hot weather. However, reflections of heat stress can look similar to lethargy from illness — always monitor closely. - Why does my bunny have soft poop?
Soft cecotropes or diarrhea might result from sudden diet changes, parasites, or infection. Speak to your vet if it continues more than a day. - Should I separate my sick bunny from others?
Yes. Temporarily isolating them helps prevent the spread of illness and minimizes stress as they recover. - What temperature should a sick rabbit be kept at?
Keep the environment between 65F and 75F. Avoid drafts or overheating but ensure they are warm and secure.


