The erythrocyte microscopy report looks at whether the morphology of the red blood cells is predominantly homogeneous or aberrant, and identifies whether the hematuria is of glomerular or non-glomerular origin. If glomerular-derived hematuria occurs, the red blood cells will be fragmented by glomerular filtration, and the red blood cell pattern report will indicate predominantly aberrant red blood cells, which is considered to be hematuria caused by glomerulonephritis or acute glomerulonephritis. In extra-renal hematuria caused by stones, infections, tumors, etc., the red blood cells are mostly intact and do not pass through the glomerular filtration, so basically no fragmentation occurs, and the erythrocyte bitemporal report indicates that homogeneous red blood cells are predominant. Therefore, if the results of the urine erythrocyte bitemporal report suggest predominantly homogeneous shape, extrarenal hematuria is considered, and the common diseases are stones, tumors, and infections. If the results are predominantly aberrant red blood cells, the hematuria is of nephrogenic origin, with common diseases such as various types of nephritis.