Rabbit urine commonly has a reddish pigment, and unless blood is seen, is not cause for alarm. The red coloration is especially noticeable when the urine is alkaline, usually due to the type of feed eaten. Consuming high amounts of beta-carotene (the orange pigment in carrots) can increase the red pigmentation in your rabbit's urine. Stress or dehydration may also increase the reddish color.
Rabbit urine also frequently contains large amounts of calcium oxalate or calcium carbonate, which may give it a thick, creamy appearance and may show up as deposits on cage walls or floors or in the bottom of litter boxes.
You should be aware that rabbits can also have bladder infections or disease. If you do see blood or blood clots in the urine, consult your veterinarian.
