What should you know about a TENS machine for back pain?

TENS uses adhesive electrodes on the skin to deliver a controlled tingling current. Some people use it while moving or completing exercises because reduced discomfort can make activity easier. Relief varies, and the effect may stop after the session. It should be considered a comfort tool, not a substitute for finding out why the back hurts.

Back pain can arise from muscles, joints, discs, nerves, or conditions outside the spine. Pad position matters: follow the manual or a physiotherapist's instructions, and avoid placing pads over the front of the neck, head, chest, broken skin, or numb areas.

Start with a low, comfortable setting while you are awake and able to check your skin. Remove the pads before bathing, swimming, or driving if the device affects your movement. Keep the unit dry and stop if you notice burning, rash, dizziness, or worsening pain.

Ask for advice before use if you have an implanted electrical device, reduced sensation, epilepsy, or pregnancy. Pair symptom relief with suitable activity, posture changes, and a rehabilitation plan when recommended.

Arrange an assessment for persistent pain, pain travelling into a leg, or new numbness or weakness. Seek urgent care for loss of bladder or bowel control, numbness around the inner thighs or groin, severe trauma, fever with back pain, or rapidly increasing weakness.

Ask whether TENS suits the likely cause of your back pain, where the electrodes belong, and how to combine it with exercises or medicines. Ask what changes should prompt a review rather than another session.