@bolso1 "what TTNS stands for"

T = Transdermal = through the skin. So TTNS = *T*ransdermal electrode patch (no needle) to send a mild adjustable electrical signal through the skin to the *T*ibial *N*erve to *S*timulate it. So TTNS = Transdermal Tibial Nerve Stimulation. That stimulation, for reasons I'm not very clear on, has quite notably reduced nocturia. So basically a method for Tibial Electrical Nerve Stimulation that doesn't require a medical professional with scary needles now and then. Instead we can do it at home, as often as desired, balancing our comfort level vs effectiveness.

It may not work for everyone, and I've found the pad placement required a bit of experimentation - especially on the ankles where Tibial nerves pass close to the skin. In my case the Sacral nerve placement worked notably better, on an easier to find (though initially more difficult for self-placement).

If you spring for the $25 little black 9v analog TENS box to try it, you might consider having a medical professional find and mark your Tibial and Sacral placement points for the two pads (on each ankle for Tibial). I found that helpful as a starting point, then moved them around noting effectiveness for slight further improvement. Having grown used to the tingling, I can now turn the power to max right after placing the pads. Of course nothing helps if I don't stop liquids at least 4 hours before bed.

Hope this helps, and that you'll feel free to ask anything further. 🙂