I am considering shoulder replacement surgery, but I fear the anesthesia issue. After my last two surgeries, I could not pee and had to endure a couple days of catheters and a lot of pain. I am wondering if going into surgery with Flomax or some other preventative already in place might prevent my past experiences. My internal health is pretty good, although I do use antiinflammatories, sleep aids and meds for borderline hypertension and cholesterol.