Hematuria of glomerular origin is predominantly of erythrocyte origin and is a lesion that results in hematuria due to filtration through the basement membrane of the kidney. Usually when urine phase contrast microscopy is performed, the red blood cell aberration rate is often greater than 70% or more, which can be determined to originate from glomerular filtration. If the body has certain diseases, it can lead to glomerulonephritis, such as primary glomerulonephritis or medical diseases, leading to secondary kidney damage, including diabetic nephropathy, hypertensive nephropathy, rheumatoid nephritis or drug-induced kidney injury, can lead to glomerular basement membrane filtration abnormalities. As a result, red blood cells will enter into human urine, forming glomerulonephritis. Therefore, when patients find this problem, they should carry out timely examination of the cause of the disease, and by treating the primary disease, they can prevent the hematuria from continuing to progress.