If children have red blood cells in the urine, the main consideration is due to the following reasons: first, due to children suffering from urinary tract stones caused by symptoms, after the formation of stones in the urinary tract of children, will cause damage to the mucous membrane of the urinary tract, which will cause bleeding, resulting in red blood cells in the urine, you can give the children timely do the ultrasound of the urinary tract to confirm the diagnosis; second, due to children suffering from hypercalciuria caused by the children, also causes red blood cells in urine. Secondly, children suffering from hypercalciuria will also cause red blood cells in urine, you can give children a 24-hour urine calcium test to confirm the diagnosis; finally, due to children suffering from renal vein compression syndrome, if the children’s renal veins are compressed, there will also be red blood cells in urine.