The total number of red blood cells in urine should be less than 3/HPF under normal conditions, and the total number of red blood cells in urine of 12,500/HPF is already significantly higher than the normal range, which is higher. Urine contains a certain amount of red blood cells, called hematuria. Urinary erythrocytes are defined as ≥3 erythrocytes/HPF in centrifugally precipitated urine. when the amount of blood per liter of urine contains more than 1 ml of blood can appear light red, called hematuria of the naked eye. Hematuria is mainly seen in various causes of urinary bleeding, such as renal tuberculosis, renal tumor, kidney stones or urinary tract stones, trauma, and urinary tract infections, glomerulonephritis and so on. In addition strenuous exercise or drug toxic side effects such as warfarin, cyclophosphamide and other drugs in the use of the process can occur to varying degrees of hematuria. Urine erythrocyte total 12500 / HPF already belongs to the higher situation, it is recommended that the patient timely regular hospital consultation, under the guidance of the doctor, active treatment.