Usually not an emergency on its own — but don't ignore it. Red, orange, or brown urine in rabbits is very often caused by harmless plant pigments (porphyrins) from their diet, not blood. However, because it can occasionally signal a bladder infection, bladder stones, or a uterine problem in an unspayed female, it's worth watching closely and having checked if it persists or comes with other signs. If your rabbit is straining, passing blood clots, off its food, or clearly in pain, treat it as urgent and see a vet the same day.
## Pigment versus true blood Many rabbits pass urine that ranges from yellow to bright orange, red, or brown depending on diet, hydration, and pigments in plants like carrot tops, spinach, and dandelion. This colour change is harmless and clears on its own. True blood in the urine (haematuria) is less common and usually comes with other signs.
## When red urine is more concerning - Straining to urinate, urinating little and often, or crying out. - Blood clots or a gritty, sludgy quality to the urine. - An unspayed female rabbit — uterine disease, including cancer, is common in older unspayed does and can cause bloody discharge. - Loss of appetite, hunching, or lethargy alongside the colour change.
## What to do If your rabbit is otherwise bright, eating, and passing normal droppings, note the colour, keep water available, and monitor over a day or two. If red urine persists beyond a couple of days, or any concerning sign appears, book a vet — a simple urine test tells pigment from blood.
Get to a vet immediately if you see any of these
- Straining to urinate or crying out when urinating
- Blood clots or gritty, sludgy urine
- An unspayed female with bloody vaginal discharge
- Red urine with loss of appetite, hunching, or lethargy
- Not urinating at all
Common questions
How do I know if it's pigment or actual blood?
You often can't tell by eye — both look red. A vet can run a quick urine test. If your rabbit is well and the colour clears within a day or two, pigment is likely; persistent red urine or other symptoms warrant testing.
My rabbit is straining and only passing drops of red urine — is that urgent?
Yes. Straining with red urine suggests a bladder problem such as an infection or stones and should be seen the same day. A rabbit that cannot urinate at all is an emergency.
Does spaying prevent this?
Spaying removes the risk of uterine disease, a common cause of true bloody discharge in older females, and is widely recommended for pet does. Discuss it with your vet.
Sources
This page is general guidance, not veterinary advice, and cannot diagnose your pet. It does not replace an examination by a licensed veterinarian. When in doubt, treat it as an emergency and contact a vet or your nearest 24/7 emergency clinic right away.
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