A Johns Hopkins Medicine answered. You can expect to have a urinary catheter (Foley) draining your bladder (which is placed in the operating room under anesthesia) for approximately 1-2 weeks after the surgery.It is not uncommon to have blood-tinged urine for a few days to a week after your surgery. Johns Hopkins Medicine answered. You can expect to have a urinary catheter (Foley) draining your bladder (which is placed in the operating room under anesthesia) for approximately 1-2 weeks after the surgery.