“…As several studies have suggested, nonpharmacological options, such as electrical stimulation, which represents one of the more benign therapies for this condition 9 , may contribute to a better quality of life and fewer complaints of pain 10 . In randomized trials, various types of electrotherapy, such as transcutaneous electric nerve stimulation (TENS) [11][12][13][14][15] , pulsed electromagnetic fields [16][17][18][19] , static magnetic field therapy 20 , low-frequency pulsed magnetic field 21 , high-frequency external muscle stimulation (HF) 22 , frequency-modulated electromagnetic neural stimulation (FREMS) 23 and percutaneous electrical nerve stimulation (PENS) 24 , have been reported to show beneficial effects, such as decreased pain and improved sensitivity, due to electric stimulation in the treatment of patients with PDN.…”