Urine routine erythrocyte normal range is not 0 to 17 / μL, urine routine erythrocyte quantitative examination normal range is 0 to 5 / μL; slide method of high power microscopic observation is generally 0 to 3 / HP. Urine routine testing of red blood cells mainly depends on the number of red blood cells under the microscopic examination of urine sediment, generally normal people have no or occasional red blood cells under the microscopic examination, the normal value of the reference range of each high power microscopy not more than 3, more than 3 is clinically referred to as microscopic hematuria, quantitative examination is generally not more than 5 / μL. When abnormal red blood cells are found in the urine, it is necessary to further search for the source of red blood cells, generally required to do urine erythrocyte morphology, to clarify whether it is renal disease or non-renal disease, and then follow the doctor’s advice to carry out the appropriate treatment. If you repeatedly check the urine test for positive red blood cells, you should go to the hospital as soon as possible after the examination to clarify the cause of the disease and do targeted treatment. Usually pay attention to rest, do not do excessive exercise to avoid aggravation of the condition.