Rabbit straining to urinate
A rabbit that strains to urinate, dribbles, cries, or cannot pass urine needs prompt veterinary care — and urgently if it is not passing any urine, which can be life-threatening. Causes include bladder stones, thick bladder sludge, infection, or a blockage. Keep your rabbit comfortable and call a rabbit-savvy vet now rather than waiting.
Fast answer for owners
- Go now if: Straining with little or no urine, pain, hunched posture, not eating, lethargy, blood, or repeated litter box visits; male rabbit unable to pass urine
- Call today if: Urine accidents, sludge, or more frequent urination while still bright and eating
- Do not: Do not press the bladder; do not increase calcium supplements; do not wait for a full day without urine
- Tell the vet: Last confirmed urine, volume, colour, sludge, pain, water intake, sex, diet calcium sources, and litter-box attempts
Go to a vet now if
- Not passing any urine despite straining
- Crying out or grinding teeth when trying to urinate
- A hard, painful belly with straining
- Lethargy or collapse alongside straining
Call a vet today if
- Urinating small amounts more often
- Urine scald or a wet, stained bottom
- Mild straining, still passing urine
Why is my rabbit wet underneath?
Urine scald may come from urinary disease, arthritis, obesity, or inability to posture. It needs cause-finding, not just cleaning.
Should I cut calcium immediately?
Do not make abrupt diet changes during an emergency. The vet can advise after confirming sludge or stones.
Can I feel the bladder myself?
Do not squeeze the abdomen. A painful or obstructed bladder needs careful veterinary handling.
Is straining to pee as urgent as not eating?
Yes if little or no urine is produced, there is pain, blood, lethargy, or appetite loss. Urinary pain can also trigger gut stasis.
Frequently asked questions
After the vet has assessed your rabbit and decided feeding is safe, supportive products can help with the recovery phase. Alfavet RodiCare and WOOLY daily-care products are positioned for digestion, appetite, hydration routine, and normal gut rhythm support after veterinary triage; they are not emergency treatment and should not delay pain relief, fluids, imaging, or medication when those are needed.
Recovery support after veterinary assessment
Merck noninfectious diseases of rabbits: Merck describes rabbit bladder sludge and uroliths, noting that larger stones may require surgery and that inadequate water intake and diet imbalance can contribute.
Source-tied safety note
- Check whether the bladder is large, painful, gritty, or difficult to express; assess hydration and shock.
- Urinalysis, urine sediment, culture when infection is possible, and bloodwork for kidney stress.
- Radiographs or ultrasound to identify sludge, stones, obstruction, or reproductive/abdominal causes.
- Pain relief, fluids, bladder flushing/catheter care when appropriate, antibiotics if indicated, or surgery for stones.
- Long-term prevention focuses on water intake, movement, diet review, weight, and follow-up imaging/urine checks.
A rabbit-savvy vet is not simply “looking at the rabbit.” They are trying to separate a painful but medically manageable problem from obstruction, shock, respiratory compromise, neurologic disease, urinary blockage, toxin exposure, or post-operative complication.
What the vet actually checks
- Do not give gut motility drugs, pain medicine, antibiotics, human medicines, oils, milk, or home remedies unless a rabbit-savvy vet directs it.
- Do not force-feed a rabbit with a hard belly, collapse, choking risk, severe breathing effort, or suspected obstruction/toxin unless your vet says feeding is safe.
- Do not wait for every red flag to appear. Rabbits often look “quiet” before they look obviously critical.
What not to do before the vet call
- Exact timeline: first abnormal sign, last normal meal, last normal droppings, water intake, urination, and any collapse or pain posture.
- Photos of droppings, urine, the enclosure, chewed objects, wounds, discharge, or the rabbit's posture.
- Diet over the last 48 hours: hay, pellets, greens, snacks, new foods, spoiled food, or access to plants/chemicals.
- Age, weight, breed/body type, sex and spay/neuter status, pregnancy possibility, bondmate status, and recent heat/travel/stress.
- Medication names, doses, missed doses, recent anaesthesia, chronic dental/urinary/respiratory disease, and previous stasis episodes.
What to tell the vet
- A rabbit repeatedly lifting the tail with little or no urine is more urgent than simple litter-box misses.
- Males may be at higher obstruction concern because of narrower urinary anatomy.
- Overweight or arthritic rabbits may sit in urine from mobility pain, leading to urine scald and flystrike risk.
- Diet history matters: alfalfa-heavy diets, calcium-rich greens, low water, and inactivity can all contribute in some rabbits.
Risk is not identical in every rabbit. Use the details below when deciding how urgent the call is, and mention them to the clinic because they change the vet's suspicion list.
Age, breed, and lifestyle nuance
- Bladder sludge, stones, or thick calcium sediment blocking or irritating urine flow.
- Urinary tract infection or cystitis causing repeated painful attempts.
- Urethral obstruction, which is less common than in cats but can be life-threatening.
- Painful spine/hip disease making posture difficult, sometimes confused with litter-box avoidance.
- Reproductive disease or abdominal pain mimicking urinary straining.
This pattern is not a personality quirk or a rabbit “being dramatic.” It usually means pain, gut imbalance, infection, toxin exposure, urinary disease, dental disease, heat stress, or another body system has started a cascade that rabbits hide until they are already unwell.
Why this happens in rabbits
Related emergency guides
What changes urgency for this page
- Small male rabbits, rabbits with sludge history, dehydration, low movement, and high-calcium diets may have higher urinary risk
What the vet is trying to rule out
- Bladder size, obstruction, sludge/stones, kidney stress, pain, hydration, urinalysis, imaging, and catheter/surgery risk
Source-tied safety note
Merck Veterinary Manual: urinary calculi in rabbits: Merck notes urinary calculi and sludge can affect rabbits and require veterinary assessment.
Page-specific owner FAQ
How long can a rabbit go without urinating?
Do not use a time limit when straining and pain are present
Is sludge an emergency?
Sludge becomes urgent with pain, no urine, blood, or reduced appetite.
Sources & standards
Emergency guidance follows RWAF, House Rabbit Society, and exotic small-mammal medicine standards, source-cited; veterinary review pending.
Related pages in this emergency hub
Source-cited guidance; veterinary review pending.