Often encountered in the clinic routine urine occult blood positive people, usually without any symptoms. The subjects were often very nervous that he was suffering from nephritis. Some people even went so far removed for treatment, waste a lot of time and effort. In fact, this view is very one-sided.
Normally urine contains more red blood cells, known as hematuria. The main cause of hematuria urinary system diseases, systemic diseases, urinary tract and adjacent tissue disorders other reasons. Generally believed that the most common urinary system diseases, among glomerular diseases, stones, infections and tumors are more common.
When urine occult blood, but no microscopic red blood cells, often there are two cases. Case represents urine containing free hemoglobin, known as hemoglobinuria. Another situation urine contains large amounts of myoglobin, called myoglobinuria.
The clinical significance of urine occult blood test is to identify the main hemoglobinuria, and its positive does not mean that if they are suffering nephritis. Blood transfusion reactions are generally incompatible, bean disease, paroxysmal hemoglobinuria, malaria, extensive burns and inflammation caused by certain drugs or poisons such as occult blood in urine can be positive. May arise when hemoglobinuria hemolytic anemia attack. In addition, patients with paroxysmal nocturnal hemoglobinuria and hemoglobinuria patients allergic attack can be positive.
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