Which TENS units are best? There are many options available for pain control and relief. While pain pills, supplements, massage and other medical interventions may be helpful, many people are trying ...

Understanding the Context

A transcutaneous electrical nerve stimulation (TENS) unit works by delivering small electrical impulses through electrodes with adhesive pads to attach them to a person’s skin. Discover the best TENS units based on extensive research into their cost and intensity level. Compare our top picks to find the right option for your needs. The Conversation: What’s a TENS machine?

Key Insights

Can it help my period pain or endometriosis? What’s a TENS machine? Can it help my period pain or endometriosis? Transcutaneous electrical nerve stimulation (TENS) uses low-voltage electrical currents to relieve pain. A TENS unit is a small device that delivers the current at or near your nerves to block or change your perception of pain.

Final Thoughts

Find portable TENS machines designed for pain relief therapy. Explore rechargeable options with electrode pads for convenient, on-the-go muscle stimulation. A typical battery-operated TENS unit is able to modulate pulse width, frequency, and intensity. Generally, TENS is applied at high frequency (>50 Hz) with an intensity below motor contraction (sensory intensity) or low frequency (<10 Hz) with an intensity that produces motor contraction.