A Transcutaneous Electrical Nerve Stimulation unit is a device that sends small electrical currents to targeted body parts. These currents, in turn, are used to relieve pain and TENS units are designed for use in a hospital. TENS Therapy subdues hyperalgesia, which is a high sensitivity to pain and the pain maybe located anywhere in the body. Also, TENS Therapy is used for treating many conditions such as bursitis, arthritis, tendonitis and headaches, among others. Tens (Transcutaneous Electrical Nerve Stimulation) Treatment involves an electrical device that sends low-voltage currents into the body and electrode pads are placed over specific nerves on the body to conduct the currents from the unit to the nerves. Tens (Transcutaneous Electrical Nerve Stimulation) is highly effective in controlling pain and it can reduce the feelings of pain and prevent them from coming back in the future. TENS may result in instant and possible prolonged TENS Pain Relief. Through the release of endorphins and the control of nerves, TENS sends relief directly to the site of pain. Before starting the stimulation, an Orthopedic examines the body and most sessions with a TENS unit last less than 15 minutes and can be administered as often as needed.