By SISSILUX · Updated September 20, 2026
TENS may reduce primary period pain, but relief is not guaranteed. It is an option to discuss if you want a non-drug method alongside your existing plan—not a reason to ignore new or changing symptoms.
What did the review find?
A 2024 Cochrane review found that both high- and low-frequency TENS may reduce pain compared with placebo or no treatment. Confidence in the evidence was low to very low, and unwanted effects were poorly reported.
The review does not justify a universal “90% effective” claim, a fixed reduction in pain medicine or a promise that TENS is better than every alternative. Primary dysmenorrhea also does not cover every cause of pelvic pain.
Does it work like a heat pad?
TENS delivers electrical stimulation through electrodes; it is not simply heating the abdomen. Our TENS mechanism guide explains the pain-signaling question. Do not assume an electrical pad has a heating function or that a warm sensation proves a treatment effect.
Check the actual device before choosing one
For menstrual use, look for instructions that explicitly cover the intended use and placement. This matters more than a “wireless” label or the number of modes. Follow those instructions rather than an improvised abdominal placement diagram.
SISSILUX’s current SissPulse listing describes general TENS and EMS functions. That listing alone does not establish a menstrual-specific protocol, so we do not present SissPulse as the device tested in the review or prescribe its use for cramps here.
If period pain is severe, newly different or disrupting normal activities, seek a medical assessment instead of relying on a device to mask it. Check pregnancy-related use with your doctor or midwife; a period-pain article is not guidance for pregnancy.