Transcutaneous electrical nerve incitement (TENS or TNS) is the usage of electric stream conveyed by a contraption to fortify the nerves for therapeutic purposes. TENS, by definition, covers the whole extent of transcutaneous associated streams used for nerve excitation regardless of the way that the term is consistently used with a more restrictive objective, to be particular to delineate the kind of pulses made by flexible triggers used to treat torment. The unit is normally connected with the skin using no less than two terminals. A normal battery-worked TENS unit can adjust beat width, repeat and power. Generally TENS unit is associated at high repeat (>50 Hz) with a power underneath motor withdrawal (substantial power) or low repeat (