Peeing little blood but not bleeding. what could this be?

Be evaluated ...: What described means you got gross hematuria, for which you should be evaluated to make sure of bladder tumor or others in urinary tract with CT.IVP and cystoscopy even though UTI can be the cause. More detail, even individual detail? Ask your urologist timely after collecting the info on its onset, degree, duration, interval, progress over time with the sequence of events.