A TENS unit is a small device that sends mild electrical pulses through skin electrodes to help reduce pain, usually for things like back pain, arthritis, muscle strains, or period pain. It does not fix the underlying cause; it’s mainly for temporary pain relief.

How it works

The pulses are thought to help by interrupting pain signals traveling to the brain and, in some cases, encouraging the body to release natural pain- relieving chemicals called endorphins.

What it feels like

Most people feel a tingling, buzzing, or gentle tapping sensation rather than pain.

Important safety notes

A TENS unit isn’t right for everyone. People with pacemakers, epilepsy, or certain skin problems should avoid it unless a clinician says it’s safe. If you want, I can also explain how to use one safely or whether it might help for your specific pain.