hi my 8 yr old daughter has noticed blood when she had a wee at school 2 day what could it be is she to young for peroids , she went hospital last year because she was struggling ,she kept needing to wee she had a scan and blood test ,doctors found traces off blood in urine but nothing on scan of bladder , she always wees often and says she needs to go wee again , her vigina looks fine no cuts or sours so what could the blood be