My 10-week-old bunny has runny poop and won't eat. Is it serious?

Hi, I am sorry to hear about Percy, a rabbit who is not defecating is a very serious condition which can indicating one of two emergencies gut stasis or gut obstruction. Both are life threatening. Since your rabbit demonstrating the signs mentioned above of: no fecal pellets, loss of appetite and lethargy it considered an emergency please take him/her to your vet immediately as rabbits can deteriorate very fast. Good Luck

I would take Hugs into a vet immediately. True diarrhea is uncommon in rabbits, and this watery stool may actually be softened cecotropes caused by an imbalance of gut flora. This can be caused by GI stasis, which in turn can be caused by stress, dehydration, pain from another condition (UTI, dental problems, infection), an intestinal blockage, or insufficient dietary fiber. GI stasis can result in a painful death of the animal if left untreated, and it's serious sign when a rabbit doesn't want to eat. You need to take Hugs into a vet now.

Lethargy and inappetance are very concerning signs especially in a bunny because if they don't eat continuously they can develop GI stasis (where their gut shuts down and won't work) which can be life threatening. Milo needs to be seen by a veterinarian right away to get to the bottom of why he is behaving this way.

These signs are quite concerning in rabbits and could be compatible with an inflammation infection of the gastrointestinal system and surrounding organs (like pancreas and liver). A clinical examination at your local veterinarian is immediately essential to confirm these clinical suspicions and treat appropriately. Antibiotics and possibly further investigations (like abdominal imaging as ultrasound or radiographs) may be needed. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

These symptoms are extremely serious, Snow needs to be taken to the vet urgently, loose motion is often fatal in rabbits if not treated on time, he will probably need antibiotics, a special food supplement and medications to promote appetite in order to get better.

A rabbit that is not eating normally should be considered a veterinary emergency. If the GI tract slows or stops, a dangerous buildup of bacteria and toxins could endanger Bun Bun's life. Given his age and weight loss, he needs to be seen by a veterinarian...any veterinarian. If necessary, a specialist can be contacted by phone or online by your vet. Veterinary reference labs may provide consultation services as well. For now, offer as much timothy hay as he will eat. Offer some Oxbow Critical Care for Herbivores as well. You may be able to find it in pet stores or in the local vet clinic. Keep Bun Bun warm and as stress free as possible. The link below leads to a list of veterinarians experienced in treating rabbits locate din Wisconsin. http://wisconsinhrs.org/local-vets/

Diahrrea is a serious symptom in rabbits, i strongly recommend taking him to the vet ASAP in order to get it checked and treated, he will need several medications to help stopping the diarrhea that is probably caused by a gastrointestinal infection.