Abnormal red blood cells 25% is usually the result in doing urine examination, according to the urine abnormal red blood cell ratio, can determine the source of hematuria. In general, the abnormal red blood cell ratio is greater than 20%, less than 80% for mixed hematuria, and the possibility of non-glomerular origin hematuria is high, which can be seen in urinary tract infection, urinary tract tumor, physiological hematuria and other conditions. 1. Urinary tract infection: if the patient has bacterial or viral infection in the urinary system, the inflammatory factor stimulates the bladder and urethral mucosa, which may lead to localized necrosis and hemorrhage of the bladder and urethral mucosa, and the patient will have elevated red blood cells and hematuria. If the patient has repeated urinary erythrocyte overload, urinary cystoscopy is required to determine whether there is chronic inflammation of the mucous membrane of the urethra and the bladder. 2. Urological tumors: if the patient is older, combined with abnormal urine red blood cells, it is necessary to be alert to urinary tumors, such as renal pelvis cancer, bladder cancer, ureteral cancer. If necessary, cystoscopy and ureteroscopy should be performed to assist diagnosis. 3. Physiological hematuria: increased red blood cells may also occur after exercise. This is due to increased renal permeability and decreased glomerular filtration rate after high-intensity exercise, resulting in spillage of red blood cells, thus forming hematuria, which is usually not obvious abnormality during examination. Urine abnormal erythrocytosis patients, it is recommended to regular hospitals, under the guidance of physicians standardized examination and treatment.