What it is
TENS works via the gate-control theory of pain: pleasant electrical stimulation competes with pain signals, and may promote endorphin release. Widely used in early and active labor in the UK; less common in US hospitals but available as a rental or purchase for home/hospital use.
Evidence review links
Each link opens the full review on the publisher's site in a new tab.
Possible benefits
- Non-pharmacologic, no effect on baby or ability to moveReview sources ↓
- Under your own control (boost button for contractions)Review sources ↓
- Can be started at home in early laborReview sources ↓
Possible risks
- Modest pain relief — better for early labor than transitionReview sources ↓
- Can't be used in the tub or showerReview sources ↓
Alternatives
- Hydrotherapy, counterpressure, breathing, massage, movementReview sources ↓
- Nitrous oxide, IV opioids, epiduralReview sources ↓
Current evidence
Cochrane 2009 review found TENS reduced pain perception and analgesic use in some settings; benefits are modest. NICE (UK) supports offering TENS for pain relief in labor.
Where the evidence is clear · where people may choose differently
For most topics, guidelines from ACOG, WHO, and other major bodies broadly agree on the core safety points (when to act in an emergency, informed-consent standards, monitoring baselines). Where reasonable people — and even guidelines — differ tends to be around thresholds (when to start or stop something), preferences (comfort, environment, support), and values (how you weigh small risks against benefits). Use the questions below to explore those pieces with your care team.
Educational only. Your care team can help you weigh what applies to your specific situation.
Related evidence topics
- Pain Management OptionsAn overview of non-pharmacologic and pharmacologic comfort options.
- CounterpressureFirm hands-on pressure to the low back or hips during contractions — one of the most effective techniques for back labor.
- Hydrotherapy — Showers and Tubs in LaborUsing warm water (shower, tub, or peri-bottle) as a non-pharmacologic pain and coping tool during labor.
Questions to ask your care team
- ?Can I rent or bring a TENS unit?
- ?When is the best time in labor to start it?
- ?Where should the pads go, and can I still move?
Universal questions (works for any decision)
A short BRAIN-style set you can bring to any conversation about interventions, monitoring, or care decisions.
- ?Why are you recommending this now — is it urgent, routine, or optional?
- ?What happens if we wait an hour (or longer) before deciding?
- ?What signs would tell us this is working — or that we need to change course?
- ?What are the alternatives, including doing nothing?
- ?What would you recommend if this were your family?
- ?What would change your recommendation?
Sources & provenance
Tap a source to open the original guideline or review in a new tab.
- Cochrane: Transcutaneous electrical nerve stimulation (TENS) for pain relief in labour — Cochrane
- NICE: Intrapartum care for healthy women and babies (CG190) — NICE
Plain-language paraphrase. Re-verify before publish.
Last reviewed: 2026-07-03
Further reading — canonical references
Read the source material directly. Each link opens the publisher's own current guidance in a new tab — cross-check what we summarize against what they say.
Tier 1 · Clinical guidelines
Tier 2 · Systematic reviews
Educational only. Guidelines evolve — the linked publisher pages will reflect newer guidance than any static snapshot.
Version history — v1.0.0
v1.0.0 · 2026-07-03 · LlaMamma editors
Initial TENS topic.
New guidance from ACOG, WHO, Evidence Based Birth, or other listed sources is recorded here and can be updated remotely without a new app release.