Hemoglobinuria is the presence of hemoglobin in the urine.
If the level of hemoglobin in the blood rises too much, hemoglobin begins to appear in the urine.
Possible causes of hemoglobinuria are listed in the table below:
Paroxysmal nocturnal hemoglobinuria
Paroxysmal cold hemoglobinuria
Toxic hemoglobinuria (hydrosulfides, mushroom poisoning, aniline)
Hemolytic uremic syndrome
Kidney inflammation or injury including glomerulonephritis
Glucose-6-phosphate dehydrogenase deficiency
Sickle cell anemia
IgM autoimmune hemolytic anemia
Thrombotic thrombocytopenic purpura
After the blood transfusion
Kala azar (black fever)