Nonhomogeneous erythrocyturia, a term used in red blood cell phlebotomy, is often used to distinguish between hematuria of renal origin, which is medical in nature, or hematuria of surgical origin, such as that caused by stones and tumors. If the hematuria is renal in origin, the fragmentation rate is higher due to the destruction of red blood cells by the glomerulus and the homogeneity is disrupted, so it appears as non-homogeneous red blood cell urine. If non-homogeneous red blood cell urine is present, it often indicates the source of renal hematuria and requires further examination for glomerulonephritis, acute nephritis and other diseases. If the hematuria is formed by stones, tumors, etc., the red blood cells are relatively intact and less destroyed, so the examination belongs to homogeneous red blood cell urine, and this condition often suggests surgical hematuria. Further ultrasound and CT examinations are needed to check whether there are stones, tumors, infections and other diseases in the urinary tract. Erythrocyte phase is an easy way to determine medical hematuria and surgical hematuria.