Urine analysis of red blood cells 19/high-power field of view is an abnormal manifestation, whether it is serious should be further diagnosed, combined with specific conditions to determine. Urine erythrocytes normal value is 0~3/high magnification field of view, erythrocytes 19/high magnification field of view for microscopic hematuria, hematuria is serious or not is related to the causes that lead to hematuria, the common causes are: urinary tract infections, urinary stones, urinary tumors, etc., of which urinary tumors are the most serious. 1. Urinary tract infection: clinical manifestation is bladder irritation, with or without lumbar pain, fever, etc., with hematuria throughout the whole process, which is generally not serious, and can be recovered after anti-infection and other treatments. 2. Urinary stones: clinical manifestations can be manifested as hematuria with renal colic. Generally, it is not serious and can be recovered after conservative or surgical treatment. 3. Urological tumor: the clinical manifestation is painless hematuria, which is more serious. Tumors are mostly malignant, which seriously threaten the health. Treatment should be carried out in time. If you find hematuria, you should go to the hospital in time to clarify the cause of hematuria and follow the doctor’s instructions for treatment.