A condition in which haemoglobin is found in the urine.
The presence of blood pigment in the urine caused by the destruction of blood corpuscles in the blood vessels or in the urinary passages. It turns urine a dark red or brown colour. In some people this condition, known as intermittent haemoglobinuria, occurs intermittently, especially on exposure to cold. Haemoglobinuria is also produced by various poisonous substances taken in the food. It occurs in malarious districts in the form of one of the most fatal forms of malaria blackwater fever.
Haemoglobinuria is the term used to describe the presence of haemoglobin in urine. Haemoglobin is an oxygen-carrying substance primarily found in red blood cells, with a small amount also present in the blood plasma. When there is an excessive breakdown of red blood cells due to factors such as heavy exercise, cold weather, falciparum malaria, or haemolytic anaemia, the concentration of free haemoglobin in the plasma increases. The body eliminates the surplus haemoglobin through the urine.