What should you know about the Empi Select TENS unit?

TENS stands for transcutaneous electrical nerve stimulation. Adhesive electrodes sit on the skin near, rather than directly over, the painful area. The device sends pulses that feel like tingling and may change how pain signals are processed or encourage the body’s own pain-modulating responses. It does not repair a torn tendon, remove pressure on a nerve, or treat an infection. Relief varies, and the device works best when paired with a plan addressing movement, strength, sleep, or the underlying condition.

Use the settings, electrode positions, session length, and cleaning instructions provided by your clinician or device guide. Apply electrodes to intact, clean skin and check the skin after use. Do not place pads across the front of the neck, over the head, across the chest, or over broken or infected skin. Keep the unit away from water and switch it off before moving electrodes. Ask for individual guidance if you have reduced sensation, a heart rhythm device, are pregnant, or cannot reliably check your skin. More background is available in this [TENS Unit](/technology/tens-unit/) guide.

Stop using the unit if it causes burning, a persistent rash, marked swelling, dizziness, palpitations, or pain that is clearly worsening. Seek urgent care for new weakness, loss of bladder or bowel control, chest pain, fainting, or sudden severe pain. A TENS unit should not delay assessment of a new or changing symptom.

Where should I place the electrodes for my pain? Which settings and schedule are suitable? Is TENS appropriate with my medicines, skin condition, pregnancy, or implanted device? What change would mean I should stop and arrange a review?