A method for treating incontinence includes positioning a transcutaneous electrode on skin of a patient adjacent a stimulation site； inserting a leading end of a percutaneous needle electrode through the skin adjacent the stimulation site, the percutaneous needle electrode including a lead wire disposed opposite the leading end； securing a neurostimulator unit to the transcutaneous electrode such that the neurostimulator unit is electrically coupled to the transcutaneous electrode with no lead wire disposed between the neurostimulator unit and the transcutaneous electrode, the neurostimulator unit including a pulse generator； connecting the lead wire of the percutaneous needle electrode to the neurostimulator unit for electrically coupling the needle electrode to the neurostimulator unit； and activating the pulse generator such that current pulses traverse the stimulation site by passing between the transcutaneous electrode pad and the percutaneous needle electrode.
