A member asked:

Microscopic blood in urine, no kidney stone. bactrim (sulfamethoxazole and trimethoprim) not working, back left side killing me, what else could it be?

A doctor has provided 1 answer

See below: How do you know you don't have a stone? Did you have a ct scan? Was a urine culture done to rule out infection? Blood in the urine needs a standardized work-up to determine the cause - including a ct scan with and without IV contrast and a cystoscopy (where the urologist looks inside your bladder with a telescope).

Answered 6/10/2014

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