What is TENS and How Does It Work?

TENS is a method of pain relief. TENS stands for: Transcutaneous Electrical Nerve Stimulation.
TENS therapy offers a natural alternative for pain relief and can provide long-term benefits without the unwanted side effects often associated with medications.

How Does TENS Work?

TENS therapy is widely recommended by pain clinics and physiotherapists globally. It not only reduces pain but also helps minimise the reliance on painkillers. Essentially, TENS stimulates your body's natural defence mechanisms against pain.

The Pain Gate Mechanism

TENS units send a mild electrical current through adhesive electrode pads placed near the pain source. This current stimulates sensory nerves that carry signals related to touch and temperature. These nerves share pathways in the spine with pain-carrying nerves. When the sensory nerves are activated, chemicals are released that block pain signals from reaching the brain—a concept known as the "Pain Gate."

Pain Gate Mode: When using TENS in this mode, pain relief is felt while the unit is active. The effect may diminish after 1-2 hours, but the session can be paused and restarted as needed.

Endorphin Release

At lower frequency settings, TENS also triggers the release of endorphins—natural pain-relieving chemicals produced by the body.

• Endorphin Release Mode: Pain relief builds gradually over approximately 40 minutes and can last for up to 4 hours even after turning off the unit.

Many individuals experience pain reduction, while others may need repeated sessions over time to achieve optimal results.

Benefits of TENS Therapy

• Natural & Drug-Free: TENS offers a natural approach to pain relief without known side effects, even with long-term use.
• Versatile & Convenient: TENS units are affordable, portable, and easy to use, making them ideal for home treatment.
• Effective for Various Conditions: TENS therapy can manage pain from various conditions and may also enhance circulation, movement, and functionality.
• Flexible Usage: You can use TENS as frequently as needed but ensure the electrode pads are repositioned every 12 hours to protect the skin.

Always read the instructions carefully and consult with your healthcare provider before starting TENS therapy.

Conditions TENS Therapy Can Help With

According to healthdirect , TENS is suitable for managing pain from, TENS has been used to give pain relief for various conditions, including:

• in labour (childbirth)
• for chronic pain
• for period pain
• for palliative care pain management
• Physiotherapists sometimes use TENS to treat pain.

Other conditions that may benefit from TENS include:

• Joint Pain
• Carpal Tunnel Syndrome
• Muscle Strains
• Toothache
• Secondary Pain from Endometriosis and IBS
• Pain Relief During Labor (via Maternity TENS)

When should TENS not be used?

TENS should not be used:

• on an open wound
• if your skin is irritated
• near sensitive areas, such as your eyes
• near a tumour or cancer
• on your head or chest
• at the front of the neck
• while driving or operating machinery
• in or around water
• TENS should not be used by:
• women who are pregnant but not in labour
• people with a pacemaker or other implanted heart device
• people with a cochlear implant
• people with epilepsy

By understanding how TENS works and its wide-ranging benefits, you can explore a natural, effective solution for pain management tailored to various conditions.

Learn more about TENS here.