In medicine, hemoglobinuria or haemoglobinuria is a condition in which the oxygen transport protein hemoglobin is found in abnormally high concentrations in the urine. The condition is often associated with Hemolytic Anemia, in which red blood cells (RBCs) are destroyed, thereby increasing levels of free plasma hemoglobin. Excess hemoglobin is filtered by the kidneys, which excrete it into the urine, giving urine a purple color.
Causes Acute glomerulonephritisBurnsRenal cancerMalariaParoxysmal Nocturnal HemoglobinuriaMicroangiopathiesTransfusion reactionsIgM autoimmune hemolytic anemiaPyelonephritisSickle cell anemiaTuberculosis of the urinary tractMarch hemoglobinuria secondary to repetitive impacts on the body, usually the feetAthletic nephritis secondary to strenuous exerciseAcute lead poisoning