I didn't have to have a catheter being a small tumor. However, I did bleed for a few voids (if I can remember far back) thus I presume what you are seeing is a byproduct of your TURB. I would still call your URO tomorrow to be sure if they didn't cover what to expect. A lot of times what looks like a lot of blood is often not much-according to my wife, she is a crusty ole maternity nurse so what do I know!
DX 5/6/2008 TAG3 papillary tumor .5 CM in size. 2 TURBS followed by 6 instillations of BCG weekly with a second round of 6 after a 6 week wait.