Hi and welcome to HCM.
It can be complication of any endoscopic or invasive procedure. There can be some damage of bladder or ureter
,but also this is sometimes only temporary neurologic disorder and it should pass after short time. If tumor
is causing this then it will gone after surgical procedure. There are some medicines which can help you and recommended dietary such as certain teas vegetables. ASk your GP about this. WIsh you good health.