Bloody urine

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Bloody urine is also known as hematuria. It is important to differentiate from red or red/brown colored urine cause by the excretion of dietary pigments in urine or blood originating from the reproductive tract in females.


  • Red-tinged urine with or without extreme urinary frequency (pollakiuria)
  • Blood clots expelled during urination (micturition)


The most common causes of hematuria are in the lower urinary tract:[1] 

The upper urinary tract is a rare cause of bloody urine:[1]

  • kidney stones (nephrolithiasis)
  • cancer
  • bacterial infection
  • kidney inflammation (glomerulonephritis)
  • trauma

Genitalia are the most common cause of hematuria in females:[1]

Lastly, there can also be systemic causes such as a low blood platelet count (thromboctyopenia) and an impaired ability for the blood to clot (coagulopathy), especially due to anticoagulant rodenticides.[1]

Sedentary, obese rabbits on diets consisting mainly of commercial pellets or high alfalfa hay content are at high risk for bladder sludge and stones, while middle-aged to older intact females at risk for uterine cancer or pyometra.[1]

Further reading

See also