Transcutaneous Electrical Nerve Stimulation, which is medical jargon for applying an electrical current on your skin to stimulate your nerves.
Though it may sound like something from 1800’s Frankenstein, if a TENS machine is used by a professional it feels comfortable and aids your healing.
Electrodes are placed on your skin to allow the current to move from one electrode to the other.
TENS machines are mainly used for pain relief during your physiotherapy treatment.