Rabbits Are Masters at Hiding Illness
Here's something that caught me off guard as a new rabbit owner: by the time a rabbit looks obviously sick, the problem has usually been building for a while. As prey animals, rabbits instinctively mask pain and weakness because showing vulnerability in the wild means becoming lunch. That evolutionary trait means you need to be proactive about spotting subtle changes.
I'm not trying to scare you. Most rabbits with proper care live long, healthy lives. But knowing what to look for — and acting quickly when something seems off — can genuinely be the difference between a treatable condition and a crisis.
GI Stasis: The Silent Killer
Gastrointestinal stasis is the number one health threat for pet rabbits, and every owner needs to understand it. GI stasis occurs when the normal movement of the digestive tract slows down or stops completely. Since rabbits depend on constant gut motility to process their high-fiber diet, a slowdown cascades quickly into a dangerous situation.
Warning signs:
- Reduced or absent appetite, especially refusing hay
- Fewer or smaller droppings, or no droppings at all
- Hunched posture with a tight, painful-looking body
- Lethargy and reluctance to move
- Loud gurgling stomach sounds, or complete silence where there should be gut sounds
- Pressing belly against the ground
What to do: GI stasis is a veterinary emergency. Every hour matters. Contact a rabbit-savvy vet immediately. While arranging transport, you can gently massage the abdomen in circular motions, offer fresh herbs to tempt eating, and ensure water is available. But these are first-aid measures, not treatment.
Prevention: Unlimited hay is the single best prevention. Adequate hydration, regular exercise, and minimizing stress all reduce risk. Sudden diet changes are a common trigger, so always transition foods gradually.
Dental Disease
Rabbit teeth grow continuously throughout their life — both incisors and molars. When teeth don't wear down properly through hay chewing, they develop sharp points called spurs that cut into the cheeks and tongue. In severe cases, tooth roots can grow into the jaw or skull, causing abscesses.
Warning signs:
- Drooling or wet chin ("slobbers")
- Dropping food while eating
- Preference for soft foods over hay
- Weight loss
- Swelling along the jawline
- Reduced appetite
I lost my first rabbit to a dental abscess that was caught too late. The vet said the infection had been building for months before the visible swelling appeared. Since then, I've been religious about annual dental checks and watching for early signs.
Prevention: Plenty of hay. Seriously — chewing hay is how rabbit teeth stay at the correct length. Genetics play a role too, especially in dwarf breeds with shorter skulls where teeth are more likely to misalign.
Snuffles (Pasteurellosis)
Snuffles is a bacterial infection caused by Pasteurella multocida that affects the upper respiratory system. It's extremely common in rabbits and can range from mild sneezing to severe pneumonia.
Warning signs:
- Sneezing with white or yellowish nasal discharge
- Matted fur on the inside of front paws (from wiping the nose)
- Watery or goopy eyes
- Loud or labored breathing
- Head tilt (if infection spreads to the inner ear)
Treatment: Antibiotics prescribed by a rabbit-savvy vet. Treatment courses often last 2-4 weeks or longer. Some rabbits carry Pasteurella without symptoms and flare up during stress. It's manageable but rarely fully cured in carrier rabbits.
Ear Infections
Ear infections are particularly common in lop-eared breeds because their folded ear canals trap moisture and debris. But any rabbit can develop them.
Warning signs:
- Head tilting to one side
- Loss of balance or circling
- Scratching at ears excessively
- Crusty, waxy, or smelly discharge from ears
- Pain when ears are touched
Inner ear infections can affect balance permanently if not treated promptly. If your rabbit develops a sudden head tilt, get to the vet the same day.
Flystrike (Myiasis)
This is one of the most horrifying conditions in rabbit medicine, and it can kill within hours. Flies lay eggs on soiled fur — usually around the rear end — and the hatching maggots literally eat into the rabbit's flesh. It's as terrible as it sounds.
Risk factors:
- Obese rabbits that can't clean themselves
- Rabbits with mobility issues
- Dirty living conditions
- Outdoor rabbits in warm weather
- Rabbits with chronic diarrhea or urine scald
Prevention: Keep your rabbit clean and dry. Check the rear end daily in warm weather. Maintain a clean enclosure. Keep outdoor rabbits protected with fly screens. Ensure your rabbit maintains a healthy weight so they can groom properly.
E. cuniculi (Encephalitozoonosis)
This is a microsporidian parasite that many rabbits carry without symptoms. When the immune system is weakened by stress, age, or other illness, it can flare up and cause neurological symptoms.
Warning signs:
- Head tilt
- Hind leg weakness or paralysis
- Loss of balance and falling over
- Urinary incontinence
- Cataracts (white spots in the eyes)
Treatment is possible with fenbendazole and supportive care, but neurological damage may be permanent. Early intervention gives the best outcomes.
Uterine Cancer
Unspayed female rabbits face an alarming statistic: up to 60-80% develop uterine adenocarcinoma by age four. That's not a typo. This is the strongest argument for spaying female rabbits regardless of whether they'll be bred.
Warning signs:
- Blood in urine
- Mammary gland swelling
- Aggressive behavior changes
- Lethargy and appetite loss
Spaying before age two eliminates the risk almost entirely. It's one of the most impactful health decisions you can make for a female rabbit.
Sore Hocks (Pododermatitis)
Pressure sores on the bottoms of the feet, caused by hard or wire flooring, insufficient padding, obesity, or inactivity. Rex breeds are particularly susceptible due to thinner foot fur.
Provide soft flooring, maintain healthy weight, and check the bottoms of your rabbit's feet regularly. Early-stage sore hocks are easily managed with padding and environmental changes. Advanced cases with open sores need veterinary treatment.
Finding a Rabbit-Savvy Vet
This is genuinely important: not all veterinarians are experienced with rabbits. Rabbits are classified as exotic pets and require specialized knowledge. A vet who's great with cats and dogs may not know rabbit-specific medicine.
Look for vets who are members of the Association of Exotic Mammal Veterinarians, or ask your local rabbit rescue for recommendations. Establish a relationship with a rabbit vet before you have an emergency — trying to find a specialist at 10 PM on a Saturday is not where you want to be.
The Daily Health Check
I spend about two minutes each evening doing a quick health scan:
- Are they eating normally? Hay consumption is the best daily indicator.
- Are droppings normal in size, shape, and quantity?
- Any discharge from eyes or nose?
- Is their energy level normal?
- Any changes in posture or movement?
This quick routine has caught problems early more than once. It becomes second nature after a while, and it's the cheapest health insurance you can give your rabbit.