My 9 year old daughter just had a colonoscopy last Tues. and on Fri. She began to urinate with no pain ,but quite often. Monday she had a urinalysis and they found trace blood in urine with no sign of infection. It has gotten worse with her urinating more frequently and not being able to empty bladder. She had another urine test on wed. And they said there is more blood in her urine. We did an ultrasound of her kidneys and bladder and the. Tech said no kidney stones. There is also a chance she may have Crohn s disease but we wont know until next week. Any ideas on what this might be?