There are some risks when you have general anesthesia. In the elderly, mild to severe confusion can occur which may last from hours to weeks after general anesthesia. Discuss these risks with your doctor. Spinal anesthesia may not numb the area quite enough and you may feel some minor discomfort. Also, in rare cases, you may have an allergic reaction to the drug used in this type of anesthesia.
Spinal anesthesia is considered safer than general anesthesia.
Any problem you may have with congestive heart failure could become worse right after the procedure. The extra tissue may grow back. Your bladder could be damaged or infected. If you are in a lot of discomfort, you may not be able to pass urine. The muscle around your urethra may be permanently damaged.