Urinalysis erythrocytes 80 / ul has been clearly out of the normal range, suggesting microscopic hematuria, but to determine whether it is serious, must be combined with the patient’s clinical manifestations and other tests. Clinically, the normal value of urine erythrocytes is 0-3/ul, so urine erythrocytes 80/ul is already significantly beyond the normal range, suggesting microscopic hematuria, and should be alert to the presence of urological diseases. But this indicator alone does not reflect the severity of the disease, to determine whether it is serious, but also need to combine with the patient’s clinical manifestations and further examination. Clinically, there are many diseases that can cause microscopic hematuria, such as acute glomerulonephritis, acute nephritis, chronic nephritis, urinary stones, urinary tract tumors and so on. However, the degree of hematuria and the severity of these diseases is not proportional to the urine microscopic erythrocyte examination alone can not determine the severity or not, must be combined with further examination and the patient’s specific situation. Urine test red blood cells 80 / ul, it is recommended to timely go to the hospital, follow the doctor’s instructions to improve the examination, to clarify the cause of the disease, timely symptomatic treatment.