Transurethral Resection of Bladdertumors

The goal of this prospective pilot study is to evaluate the safety and feasibility of using heated saline during bladder tumor surgery in patients with non-muscle invasive bladder cancer. The main questions it aims to answer are: Can heated saline be given during bladder tumor removal surgery safely? Does using heated saline keep the bladder tumor from coming back? Researchers will compare the heated saline to room temperature saline to see if the heated saline works to prevent the bladder tumor from coming back. Participants will: * Have heated saline or room temperature saline during bladder tumor surgery * Visit the clinic at 2 weeks, 3 and 6 months after bladder tumor surgery * Complete questionnaires about quality of their life and symptoms before and after surgery * Provide urine samples to test your urine at each visit before and after surgery * To have a cystoscopy to check your bladder for tumors