TENS machines for period pain
Originally written by Izzie Price for Daye. Updated by femme with current NHS guidance.
TENS stands for transcutaneous electrical nerve stimulation. A small battery-powered device sends mild electrical impulses through sticky electrode pads placed on the skin. For some people, that can provide temporary pain relief, including relief from period pain.
How does TENS work?
The exact mechanism is not completely understood. TENS is thought to reduce pain signals travelling to the spinal cord and brain and may also encourage the body's own pain-modulating chemicals.
You should feel a tingling sensation rather than pain. The intensity can be adjusted, and electrode placement matters.
Why people consider TENS for cramps
Non-drug option
TENS does not involve hormones or painkilling medication and can be used alongside other suitable approaches.
Portable
Many devices are small enough to use while moving around or working, although wires, pads and controls vary by model.
Adjustable
Intensity can usually be changed to a comfortable level. Higher is not automatically better.
Temporary relief
The NHS is clear that TENS does not work for everybody and that any pain relief may be temporary.
When should you not use TENS?
The NHS advises that you should not use TENS without medical advice if you have epilepsy or a pacemaker. Do not use TENS during pregnancy unless your doctor or midwife says it is safe.
Do not put pads over broken, infected or numb skin, on the front or sides of the neck, over the eyes or mouth, or across the chest and upper back at the same time. Follow the instructions supplied with your own device.
What are the disadvantages?
TENS may simply not work for you. Some people dislike the sensation, and adhesive pads can irritate the skin. It can also be easy to treat the pain signal while missing the reason the pain is happening.
If period pain is severe, worsening, affecting daily life or not helped by ordinary pain relief, speak to a GP. Endometriosis, adenomyosis, fibroids and other conditions can cause painful periods.
Trying TENS safely
- Read the manufacturer's instructions before use.
- Start with a low setting and increase gradually to a strong but comfortable tingling.
- Place pads on clean, healthy skin in the recommended area.
- Do not use while driving, operating machinery, in the bath or shower, or while sleeping unless the product specifically says it is safe.
- Stop if the device causes pain, burning or significant skin irritation.
The bottom line
TENS can be a useful non-drug option for some people with menstrual cramps, but it is not guaranteed to work and it does not diagnose or treat an underlying cause of severe pain.







