Blood in urine can go up to 2 to 3 weeks. Also, chunks, and other debris is common. You gotta remember that the bottom of the bladder was removed, then resewn with 2, 3 or 4 lines of stitchs across and around the neck of the bladder and the top of the urether. It has had a lot of raw edges exposed that will bleed until it seals and heals. As long as you don't get bright red blood in great volume all the time, not just when walking or whatever, things seem to be progressing normally.