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Combined Wedge-Edge Resection Labiaplasty (Modified Trim + Wedge)

The combined wedge-edge resection, also called the modified trim with wedge component, is a hybrid labiaplasty that integrates a central full-thickness wedge with edge-margin trimming in the same operation. Cao 2015 described the technique in Aesthet Plast Surg (49 patients selected from 524 labia esthetic surgeries; retrospective; mean follow-up 4.5 months). These are typically patients with bi-dimensional hypertrophy (excess in both the horizontal / protrusion plane and the vertical / length plane), asymmetric / unilateral hypertrophy, or hyperpigmented or irregular edges who also need substantial central volume reduction.[1][2] For positioning against other female cosmetic options, see Cosmetic Genital Surgery — Female.

Society positioning. ACOG Committee Opinion No. 795 (2020) states that procedures to alter sexual appearance or function, other than those for clinical indications, are not medically indicated. It advises counseling patients that safety and effectiveness have not been established, high-quality effectiveness data are lacking, and risks include pain, bleeding, infection, scarring, adhesions, altered sensation, dyspareunia, and reoperation.[3] The FIGO 2025 statement holds that it is ethically inappropriate for obstetrician-gynecologists to recommend, perform or refer patients for purely cosmetic genital surgery in women without structural or functional abnormalities, citing the lack of strong safety and effectiveness evidence.[11] ACOG advises assessment for body dysmorphic disorder when indicated and referral before surgery for suspected psychological concerns.[3] FIGO calls for careful assessment of psychological impact, including body dysmorphic disorder.[11] A four-society S2k guideline states that aesthetic genital surgery must not be performed when body dysmorphic disorder is suspected and calls for specific evaluation (expert consensus, +++).[12] ACOG Committee Opinion No. 686 (2017) advises that labiaplasty in girls younger than 18 years be considered only for significant congenital malformation or persistent symptoms that the physician believes are caused directly by labial anatomy, or both.[4]

Rationale — why combine?​

Each standalone technique has gaps the other can fill (per the Zahedi 2023 algorithm and the Ucar 2025 comparison):

Technique aloneStrengthGap
TrimRemoves a hyperpigmented or irregular free edge; Zhou uses edge resection primarily for horizontal redundancy. Zahedi's expert algorithm favors trim over wedge for nicotine or cocaine users.[2][5][6]Sacrifices the native edge; trim alone may leave a second dimension of excess in patients selected for Cao's combined procedure.[1][5]
WedgeReduces focal protrusion while preserving the natural edge; in Zhou's axis convention, wedge resection is primary for vertical redundancy.[2][5]Leaves edge irregularity or pigmentation; pooled dehiscence was 8% (95% CI 5–13%). Zahedi describes unequal wedge widths and positions to address asymmetry.[5][7]

Combining both addresses both dimensions of hypertrophy and removes the undesirable edge. Cao and colleagues propose it for asymmetry, especially unilateral hypertrophy; no comparison with either technique alone has been published.[1]

Indications​

These anatomical patterns guide selection of the combined technique only after symptoms, goals, normal genital variation and candidacy for surgery have been assessed.[3][5]

  • Bi-dimensional hypertrophy. Excess in both width / protrusion and length.[1][2]
  • Dark / irregular edge plus central bulk. The patient wants the edge removed and substantial central volume reduced in the same operation.[1]
  • Asymmetric or unilateral hypertrophy. 42.9% of Cao's combined-technique cohort had unilateral reduction.[1]
  • Concurrent labial and lateral clitoral-hood redundancy. Zhou's trilobal variant combines labial wedge and free-edge excision with hood reduction; Xia's three-step variant combines a labial wedge with hood-skin and junction-triangle excisions.[2][8]

Zahedi's expert algorithm warns that active nicotine or cocaine use may compromise wedge-flap healing.[5] In the Ucar 2025 series, the three dehiscences after wedge resection all occurred in active smokers.[5][6]

Surgical technique — Cao 2015 combined wedge-edge resection​

The steps below are a synthesis of standard wedge and trim technique.

StepDetail
1. MarkingLithotomy. Mark the full-thickness wedge centered on the most protuberant portion (apex toward the interlabial sulcus, arms reaching the free edge). Mark the edge-trim line above and / or below the wedge along the segment of redundant or hyperpigmented margin. For Cao's combined wedge-edge approach,[1] blend the trim line into the wedge arms to avoid a step deformity; check that the anterior trim starts below the clitoral frenulum and that the planned wedge approximates without tension or distortion of the clitoral hood or fourchette.[5]
2. AnesthesiaLocal with epinephrine, with or without sedation, or general.
3. Wedge excisionFull-thickness wedge excised through both medial and lateral mucosal surfaces.
4. Edge trim excisionThe protruding / pigmented margin is trimmed along the planned line, either above or below the wedge, or along the entire residual length as needed.
5. HemostasisBipolar electrocautery; selective suture ligation.
6. Closure (wedge first)The wedge is closed first with a multilayer absorbable closure (deep absorbable plus superficial), as for isolated wedge.[5]
7. Closure (trim second)The trim edges are then approximated to the wedge closure with fine absorbable suture, blending the two suture lines into a continuous edge.
8. Contralateral sideRepeat with deliberate intraoperative comparison for symmetry — often asymmetric resection given the indication for the technique.

Cao 2015 perioperative metrics[1]:

  • n = 49 patients (retrospective, mean follow-up 4.5 months); 21 (42.9%) had unilateral reduction.
  • Mean operative time was 56 min.
  • Minor dehiscence occurred in 2 / 49 (4.1%).
  • One patient had a revision for postoperative asymmetry.
  • All patients were satisfied with aesthetic appearance.

Composite variants extending the combined logic​

VariantDescriptionOutcomes
Zhou 2022 trilobal compositeIn Zhou’s axis definitions, edge resection is primary for horizontal redundancy and wedge resection for vertical redundancy; the middle flap addresses the lateral clitoral hood while preserving the clitoral-labial triangle and subcutaneous tissue beneath the flap. n = 136 (224 sides)[2]At 3 months, cosmetic satisfaction was 107/117 (91.5%) and functional satisfaction 93/97 (95.9%) among those seeking each outcome; 3/136 (2.2%) underwent secondary repair. Small hematomas occurred on 15/224 sides; seven patients returned to the hospital for removal. Superficial clitoral-prepuce dehiscence occurred on 1/224 side, and swelling persisted on 20/224 sides at three months; the authors reported no serious complications.[2]
Xia 2021 three-step excisionSequential: prominent clitoral hood skin parallel to labia majora → wedge of protuberant labia → triangle at labia–hood junction. n = 136Overall satisfaction 95.5% (106/111 questionnaire responders) at ≥3 mo; complications 4.4% (6/136); revision 3.7% (5/136); sex life improved in 70.9% (61/86 respondents) at ≥3 mo[8]
Hamori extended wedgeWedge-based, extended superiorly toward the clitoral hoodVideo vignette of the author's preferred technique (aesthetic analysis, marking, execution); no outcomes reported[9]
Jiang 2021 medial de-epi + lateral edge resectionMedial-surface wedge de-epithelialization is combined with lateral free-edge resection; a segment of the lateral margin is excised[10]n = 51 (control 26 with wedge); genital-appearance satisfaction 94.1% (48/51) vs 96.2% (25/26) in controls (NS); among questionnaire respondents (29 modified, 14 control), FSFI improved significantly from baseline only in the modified group, without a significant between-group difference[10]

Concurrent hood redundancy may require a separately planned lateral-hood reduction; avoid dividing the frenulum and keep hood dissection superficial to dartos fascia to protect the dorsal clitoral nerve.[5]

Patient-selection algorithm​

Adapted from Zahedi 2023 with the combined-technique extension from Cao 2015:[5][1]

Patient factorFavors trim aloneFavors wedge aloneFavors combined
Edge qualityPoor (irregular, hyperpigmented)Good (smooth, normal color)Poor edge plus central bulk
Protrusion morphologyBroad projection along the labial lengthFocal projection with a free edge worth preservingExcess in both axes or focal projection with an unwanted free edge
SymmetrySymmetric bilateralSymmetric bilateralAsymmetric / unilateral
Pigmentation goalWants dark edge removedWants edge preservedWants dark edge removed plus volume reduction
Nicotine / cocaine useFavored over wedge in Zahedi's expert algorithm; safety during active use is not established[5]Zahedi advises avoiding wedge during active use because compromised perfusion may impair flap healing; Ucar observed three first-week dehiscences after wedge, all in active smokers[5][6]The wedge component retains Zahedi's perfusion concern; Ucar's comparison did not include the combined technique[5][6]
Concurrent hood redundancyLimited ability to addressCan extend superiorlyTrilobal / three-step variants have been described for combined labial and lateral-hood reduction in single-arm series; neither cited series compares them with trim or wedge alone.[2][8]

Outcomes summary​

StudyVariantnSatisfactionDehiscenceRevision
Cao 2015Combined wedge-edge[1]49100% satisfied with aesthetic appearance (mean follow-up 4.5 mo)4.1% (2/49, minor)2% (1/49)
Zhou 2022Trilobal composite[2]136 (224 sides)At 3 mo: 91.5% cosmetic (107/117 seeking appearance improvement) / 95.9% functional (93/97 seeking functional improvement)0.4% (1/224 sides, superficial clitoral-prepuce dehiscence)2.2% (3/136)
Xia 2021Three-step excision[8]136 (ages 9–55; no adult-only outcome reported)95.5% overall (106/111 questionnaire responders at ≥3 mo)Not reported separately (4.4% [6/136] had any complication)3.7% (5/136)
Jiang 2021Medial de-epi + lateral edge[10]5194.1% satisfied with genital appearance (48/51)Not reportedNot reported

Across labiaplasty as a whole, the Géczi 2024 systematic review and meta-analysis (86 studies, 53 with quantitative data) found pooled satisfaction of 94% (95% CI 93–95%), highest for de-epithelialization (97%). Composite reduction had a pooled swelling incidence of 13% (95% CI 2–54%).[7] No comparison shows the combined technique to be superior on satisfaction.

Advantages​

  • Addresses bi-dimensional hypertrophy in a single operation.[1][2]
  • Removes hyperpigmented / irregular edge and reduces central volume.[1]
  • Suited to asymmetry and unilateral hypertrophy, which accounted for 21 of the 49 patients in the Cao series.[1]
  • Composite variants address concurrent lateral clitoral-hood redundancy in the same procedure.[2][8]
  • The retrospective series reported distinct satisfaction outcomes: aesthetic appearance in all 49 Cao patients (mean follow-up 4.5 mo), cosmetic outcome in 107/117 Zhou patients seeking appearance improvement (91.5% at 3 mo), and overall outcome in 106/111 Xia questionnaire responders (95.5% at ≥3 mo; mixed-age cohort).[1][2][8]

Disadvantages​

  • More technically demanding. Proficiency in both trim and wedge approaches is required, with careful blending at the suture-line transitions.[5]
  • Operative time. Mean operative time was 56 min in Cao 2015; the series has no comparison group.[1]
  • Dehiscence risk at the wedge closure persists; the same precautions as for isolated wedge apply (multilayer closure; active smoking is a relative contraindication).[5][6]
  • Sacrifices the native labial edge (unlike isolated wedge or de-epithelialization).[5]
  • Limited published evidence. The reports are small retrospective single-center series (level IV).[1][2][8]

Postoperative management​

The Cao abstract reports follow-up assessments at one and six months.[1] Zhou's trilobal series advised avoiding intercourse and strenuous exercise for four weeks and follow-up at 7–10 days and three months.[2] The items below are a proposed practice regimen.

  • Activity restriction. Intercourse, tampon use and strenuous exercise are avoided for 4–6 weeks, with particular care early because of the wedge-component dehiscence risk.
  • Wound care. Ice 48–72 h; sitz baths 24–48 h onward; topical antibiotic ointment; loose-fitting clothing.
  • Smoking cessation is advised preoperatively when feasible.
  • Follow-up. 1 week (wound check; watch the wedge closure), 2 weeks, 6 weeks (clearance), 3–6 months (final outcome).
  • PRO assessment. FSFI and FGSIS at baseline and ≥ 6 months postoperatively.

See Also​

References​

1. Cao Y, Li Q, Li F, et al. Aesthetic labia minora reduction with combined wedge-edge resection: a modified approach of labiaplasty. Aesthet Plast Surg. 2015;39(1):36–42. doi:10.1007/s00266-014-0428-x

2. Zhou Y, Li Q, Li S, et al. Trilobal methods for composite reduction labiaplasty. Aesthet Plast Surg. 2022;46(3):1472–1480. doi:10.1007/s00266-022-02841-7

3. Committee on Gynecologic Practice, American College of Obstetricians and Gynecologists. Elective female genital cosmetic surgery: ACOG Committee Opinion No. 795. Obstet Gynecol. 2020;135(1):e36–e42. doi:10.1097/AOG.0000000000003616

4. Committee on Adolescent Health Care, American College of Obstetricians and Gynecologists. Breast and labial surgery in adolescents: Committee Opinion No. 686. Obstet Gynecol. 2017;129(1):e17–e19. doi:10.1097/AOG.0000000000001862

5. Zahedi S, Bhat D, Pedreira R, Canales FL, Furnas HJ. Algorithm for trim and wedge labiaplasties. Aesthet Surg J. 2023;43(6):685–692. doi:10.1093/asj/sjad033

6. Ucar E, Bestel M, Ucar BH, Dogan O. The effect of technique selection in labiaplasty surgery: analysis of aesthetic and functional outcomes. J Clin Med. 2025;14(24):8923. doi:10.3390/jcm14248923

7. Géczi AM, Varga T, Vajna R, et al. Comprehensive assessment of labiaplasty techniques and tools, satisfaction rates, and risk factors: a systematic review and meta-analysis. Aesthet Surg J. 2024;44(11):NP798–NP808. doi:10.1093/asj/sjae143

8. Xia Z, Liu CY, Yu N, et al. Three-step excision: an easy way for composite labia minora and lateral clitoral hood reduction. Plast Reconstr Surg. 2021;148(6):928e–935e. doi:10.1097/PRS.0000000000008589

9. Hamori CA, Stuzin JM. Female cosmetic genital surgery. Plast Reconstr Surg. 2018;141(4):916–918. doi:10.1097/PRS.0000000000004263

10. Jiang X, Chen S, Qu S, et al. A new modified labiaplasty combined with wedge de-epithelialization on the medial side and edge resection. Aesthet Plast Surg. 2021;45(4):1869–1876. doi:10.1007/s00266-021-02137-2

11. Capito L, Antsaklis A, Gupte S. FIGO statement: cosmetic genital surgery. Int J Gynaecol Obstet. 2025;170(1):11–14. doi:10.1002/ijgo.70203

12. Beckmann MW, Borkenhagen A, Fahlbusch C, et al. "Reconstructive and Aesthetic Surgeries on the Female Genitalia. Guideline of the DGGG, DGPRÄC, OEGGG and SGGG (S2k-Level, AWMF Registry No. 009/019, May 2022)." Geburtshilfe Frauenheilkd. 2023;83(7):802–826. doi:10.1055/a-2065-4458