Stage 1 is designed to ensure that a sacral neurostimulator will help your urinary symptoms. Typically, the first step is done without the need for any sedation or general anesthesia. You will lie facedown so your urologist can identify the area on the back where the small wires will be placed. Using local anesthesia, a needle and tiny wire are placed alongside the nerve that controls the bladder. An electrical pulse is then passed through the wire. If the wire is in the correct place, the needle will be removed and the wire left in place. Following placement, you will be instructed how to take care of the temporary device and asked to keep a diary of urination symptoms over the next 5 to 7 days.