it sounds like BOTH of you need to follow up on the blood in your urine. most of the time it is due to a benign reason (infection, kidney stone, etc.), but there is always a SMALL chance there is a kidney or bladder lesion or tumor. i do not think a cyst can cause blood in urine. please see your primary or an urologist for follow-up. the worst they will do is a scope of your bladder. i had it done y