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Bloody Urine (Hematuria) in dogs and cats


Hematuria is the presence of blood in the urine.

Urine color will vary between species, but it is normally some shade of yellow depending on the concentration. Abnormal color changes in the urine could be due to drugs, increased urinary pigments or red blood cells. Red to reddish-brown could be due to either hematuria, hemoglobinuria, or myoglobinuria. Yellow-green to yellow-brown is associated with bilirubinuria. Occasionally, unusual colors may be caused by dyes associated with food or drugs. Pictured above is a urine sample exhibiting hematuria.

Additional information

Hematuria is the presence of blood in the urine.

Occurs secondary to loss of endothelial integrity in urinary tract, clotting factor deficiency, or thrombocytopenia.

Systems Affected
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