A stimulation therapy device configured to provide an electrical stimulation therapy to branches of the tibial nerve of a patient, the device comprising: a support member configured to be worn around the ankle or foot of the patient; first and second pairs of electrodes (108, 110) attached to the support member; and a stimulation circuit attached to the support member; characterized in that: that stimulation circuit comprises: a first stimulation pulse discharge circuit configured to discharge first electrical stimulation pulses through the first pair of electrodes, the first stimulation discharge circuit comprising: a first switch; and a first step-up transformer having a primary winding coupled to the first switch, and a secondary winding coupled to the first pair of electrodes; a second stimulation pulse discharge circuit configured to discharge second electrical stimulation pulses through the second pair of electrodes, the second stimulation discharge circuit comprising: a second switch; and a second step-up transformer having a primary winding coupled to the second switch, and a secondary winding coupled to the second pair of electrodes; and a controller configured to actuate the first and second switches between open and closed states; and one of the second pair of electrodes (106C, 106D) is positioned between the first pair of electrodes on the support member, and one of the first pair of electrodes (106A, 106B) is positioned between the second pair of electrodes on the support member. a support member configured to be worn around the ankle or foot of the patient; first and second pairs of electrodes (108, 110) attached to the support member; and a stimulation circuit attached to the support member; that stimulation circuit comprises: a first stimulation pulse discharge circuit configured to discharge first electrical stimulation pulses through the first pair of electrodes, the first stimulation discharge circuit comprising: a first switch; and a first step-up transformer having a primary winding coupled to the first switch, and a secondary winding coupled to the first pair of electrodes; a second stimulation pulse discharge circuit configured to discharge second electrical stimulation pulses through the second pair of electrodes, the second stimulation discharge circuit comprising: a second switch; and a second step-up transformer having a primary winding coupled to the second switch, and a secondary winding coupled to the second pair of electrodes; and a controller configured to actuate the first and second switches between open and closed states; and a first stimulation pulse discharge circuit configured to discharge first electrical stimulation pulses through the first pair of electrodes, the first stimulation discharge circuit comprising: a first switch; and a first step-up transformer having a primary winding coupled to the first switch, and a secondary winding coupled to the first pair of electrodes; a first switch; and a first step-up transformer having a primary winding coupled to the first switch, and a secondary winding coupled to the first pair of electrodes; a second stimulation pulse discharge circuit configured to discharge second electrical stimulation pulses through the second pair of electrodes, the second stimulation discharge circuit comprising: a second switch; and a second step-up transformer having a primary winding coupled to the second switch, and a secondary winding coupled to the second pair of electrodes; and a second switch; and a second step-up transformer having a primary winding coupled to the second switch, and a secondary winding coupled to the second pair of electrodes; and a controller configured to actuate the first and second switches between open and closed states; and one of the second pair of electrodes (106C, 106D) is positioned between the first pair of electrodes on the support member, and one of the first pair of electrodes (106A, 106B) is positioned between the second pair of electrodes on the support member.