Postpartum perineal ice pack for 20 minutes,
does it really help with Relief of perineal pain?
research showsThe grade is D. A trial randomized 114 primiparous women, 38 each, to ice, a room-temperature water pack, or no treatment. Pain at 20 minutes was 1.6 (95% CI 1.0-2.3), 2.1 (1.6-2.7), and 3.3 (2.6-4.1) on a 0-10 scale. Ice beat no treatment but not the room-temperature pack (P=.945).
ads claimIn Korean postpartum care, cooling may be used for brief comfort, but evidence for durable treatment is weak. Ice should be wrapped and limited to roughly 10-20 minutes, distinct from sitz baths, analgesics, and wound assessment.
Useful facts when choosing a product
- The intervention was one 20-minute ice-pack application, with both room-temperature pack and no-treatment controls.
- Pain was followed only to 60 minutes in the pivotal trial.
- Variability was reported as 95% confidence intervals, not standard errors.
Chamgap Semantic Classification Code
Candidate index · review held
UNK.single-postpartum-perineal-ice-pack-application.UNK.perineal-pain.relieve.noneUnknown > single postpartum perineal ice-pack application > Unknown > perineal pain > Symptom-relief claim > No intervention
An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.
What the research actually shows
The Brazilian birth-center trial randomized 114 primiparous women after spontaneous vaginal birth to ice, a water pack at a set room temperature, or no treatment. A single pack was applied for 20 minutes; pain was rated before, immediately at 20 minutes, and at 40 and 60 minutes. Baseline means were 4.6, 4.6, and 4.5. At 60 minutes they were 1.5 (0.9-2.1), 1.8 (1.2-2.6), and 3.1 (2.4-3.9). The table reports means and 95% confidence intervals, not standard errors; with 38 per group, back-calculated endpoint SDs are approximately 1.7-2.4 points. The paper's 30% Farrar threshold concerns within-person chronic-pain change and cannot validate this acute postpartum between-group contrast. The 13-mm acute-pain VAS change from Todd and Funk is also an individual-change value not validated for between-group postpartum perineal pain. No directly applicable group MCID was confirmed, so precision was not upgraded. Analgesic consumption was not confirmed as a key outcome in this 114-participant trial. Cochrane 2020 rated cooling evidence very uncertain.
Why this is classified as D (28)
Cooling added no benefit over a room-temperature pack in a small single trial, giving D with 28 points.
Counterpoint. The immediate difference versus no treatment was large but included nonspecific contact and expectation effects.
Rejudgment record. Cross-check applied — Null cooling-specific comparison against a room-temperature pack in one small trial
| Endpoint | P | Symptom or function itself is the target - including patient reports and performance tests |
| Replication | R1 | Single confirmatory trial |
| Independence | I1 | Mixed funding sources |
| Effect size | E0 | Null |
| Precision | C0 | The confidence interval leaves room for benefit |
Stored derived and displayed grades match; this is not a current recalculation or validity check (D).
Sub-claim grades by effect
This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.
| Effect (sub-claim) | Grade | Basis |
|---|---|---|
| Immediate pain relief versus a room-temperature pack | D | There was no difference at 20 minutes, P=.945. |
Cross-check — AI research and Codex final gate
Evidence Table
| Study | Design | Sample | Funding | Endpoint | Result | Weight |
|---|---|---|---|---|---|---|
| Leventhal LC et al. 2011 | Three-arm randomized controlled trial | 114 participants, 38 per group | The exact Funding and Acknowledgement wording could not be verified in the accessible record | Pain score at 20 minutes, treated as primary, with 40- and 60-minute follow-up | At 20 minutes: ice 1.6 (1.0-2.3), room-temperature pack 2.1 (1.6-2.7), no treatment 3.3 (2.6-4.1); ice versus room temperature P=.945 | Direct test isolating the effect of cooling |
Receipt — 2 References
All 2 cited sources were verified for existence at the original page (as of 2026-08-08).
Final verification and publication gate: Codex · Evidence date: 2026-08-08 · Corrections: none
Cite this verdict
[Chamgap] Postpartum perineal ice pack for 20 minutes x immediate pain relief — Evidence Grade D·28. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/womens/postpartum-perineal-ice-pack-pain-relief/ · CC BY 4.0CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.
What this document does and does not do
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