What should you know about personal TENS unit?

TENS stands for transcutaneous electrical nerve stimulation. A small device sends controlled impulses through adhesive pads placed on intact skin near, or sometimes around, a painful area. People may feel tingling or tapping. The effect varies, and symptom relief does not explain why the pain started. A personal device should support a broader plan that may include diagnosis, movement, rehabilitation, sleep, and activity changes.

Follow the device instructions and begin with a comfortable setting. Place pads on clean, dry, intact skin, keep them separated, and check the skin after use. Do not place electrodes across the front of the neck, over the head, across the chest, on broken or infected skin, or where sensation is reduced. Do not use it while driving, bathing, sleeping, or near water. Ask a clinician before use if you have an implanted electrical device, are pregnant, or have a condition affecting sensation.

Stop using the unit if it causes burning, painful shocks, skin injury, dizziness, palpitations, or worsening symptoms. Seek assessment when pain is new, severe, progressive, follows an injury, or comes with weakness, numbness, fever, or loss of bladder or bowel control. A TENS unit should not delay evaluation of these signs.

Ask whether TENS is suitable for your pain, where the pads may safely go, and what setting and session length to start with. Ask how to combine it with exercise and what symptoms mean you should stop.