Thank you for your query on Healthcare Magic.
There are many reasons for blood in urine.
The reasons may be start from urethra
and some times some systemic illnesses.
I advise you to investigate with CUE, microscopy, urine culture and ultrasound
abdomen initially followed by other investigations like urine protein estimation, serum and urine calcium, and other investigations depending on the initial reports.
Consult the Pediatrician
for physical examination and further investigations to look for the causes of blood in urine and its management.
Hope I have answered your query.