In the urination disorder treatment device, a control portion compares a stimulation pulse 58 by a pair of body-surface electrode pads with a detection pulse 60 of a toe to judge whether a nerve passing through the sacral bone or the vicinity of the sacral bone is appropriately stimulated by the stimulation pulse 58 or not. Further, the detection pulse 60 is generated by reactions of the tibial nerve and/or the peroneal nerve extended up to the tiptoe which are connected to the nerve passing through the sacral bone or the vicinity of the sacral bone by way of the ischiadic nerve.