Urine routine red blood cells normal reference value in 0 ~ 3 / HP, so urine routine red blood cells 1 ~ 3 / HP, is a normal phenomenon. Slide method of urine erythrocytes average 0 ~ 3 / HP, 1 ~ 3 / HP normal, greater than 3 or more often suggests microscopic hematuria, divided into physiological and pathological two cases. Strenuous exercise, female menstruation specimen contamination of urine, there may be microscopic hematuria, remove the relevant factors can generally return to normal. Urinary stones, urinary tract infections, urinary tract tumors, etc. may also appear hematuria, need to consult a doctor in time. Patients with elevated urine erythrocytes should go to the hospital in a timely manner, under the guidance of a professional physician to clarify the cause of the disease and timely treatment.