Non-Binary / Nullification Gender-Affirming Surgery
This page covers the genitourinary / reconstructive-urologic subset of variant genital gender-affirming surgery (variant GGAS) for non-binary and gender-diverse patients. Non-GU non-binary content (chest preferences, voice, FFS) lives in the Non-Binary / Nullification clinical-conditions article. The framework follows WPATH SOC v8 (2022) broadened non-binary language and ACOG 2021 alongside emerging consensus on individually-customized procedures.
Non-binary and gender-diverse patients increasingly seek genital outcomes that fall outside the binary surgical paradigm — combinations of native and reconstructed anatomy, or removal of all external genitalia entirely. The 2025 BJU Int SR by Claeys et al. identified 23 case series describing variant genital gender-affirming surgery (variant GGAS) across three principal categories: genital nullification, phallus-preserving vaginoplasty, and vagina-preserving phalloplasty / metoidioplasty. The contemporary technique anchor is Ascha et al. 2024 J Sex Med (n = 16) describing operative techniques for all three categories. 30.8% of patients presenting for chest surgery in one cohort identified as non-binary, and 17.8% of non-binary AMAB / 33.9% of non-binary AFAB patients had received at least one form of GAS in a large primary-care cohort (Pletta 2025 JAMA Netw Open). Non-binary and binary transgender individuals report similar desire for GAS (p = 0.411; Kennis 2022).[3][4][5][6][7] Insurance criteria are often written around binary endpoints, and most variant GGAS evidence remains case-series-only.
Decision Framework
Identify the Patient's Genital Goals
Unlike binary GAS, non-binary procedures require an explicitly individualized consultation that does not assume a binary endpoint:[3][4]
- Which natal genital structures cause dysphoria? (some / all / none?)
- Which natal genital structures are desired to be retained? (phallus? vagina? both? neither?)
- Is receptive vaginal intercourse desired?
- Is penetrative phallic intercourse desired?
- Is standing micturition desired?
- What is the tolerance for surgical complexity and complications?
Match Goals to Procedure
| Patient Goal | Genital Nullification | Phallus-Preserving Vaginoplasty | Vagina-Preserving Phalloplasty / Metoidioplasty | Standalone Gonadectomy |
|---|---|---|---|---|
| Remove all external genitalia | ✓✓✓ | ✗ | ✗ | ✗ |
| Retain phallus + add vagina | ✗ | ✓✓✓ | ✗ | ✗ |
| Add phallus + retain vagina | ✗ | ✗ | ✓✓✓ | ✗ |
| Eliminate endogenous hormones only | ✓ (included) | Optional | Optional | ✓✓✓ |
| Receptive vaginal intercourse | ✗ | ✓✓✓ | ✓✓✓ | n/a |
| Penetrative phallic intercourse | ✗ | ✓ (native phallus) | ✓ (with prosthesis) | n/a |
| Minimal surgical complexity | ✓ | ✗ | ✓ (shaft-only without UL) | ✓✓✓ |
| No lifelong dilation commitment | ✓✓✓ | ✗ (required) | ✓✓✓ | ✓✓✓ |
| Bridge / option to future binary procedure | ✗ (irreversible) | ✗ (donor tissue committed) | Variable | ✓ (preserve scrotal skin) |
Anchors: Ascha 2024 individually-customized procedures (n = 16); Claeys 2025 BJU Int SR (23 case series); Saltman 2023 NSQIP standalone-orchiectomy n = 1,005 complication 3.7%; Chen-Berli 2021 OHSU shaft-only with vulvoscrotoplasty (n = 4); Moorefield 2024 Y-to-V advancement variant.[3][4][2][8][9]
Urethral Lengthening Decision in Vagina-Preserving Procedures
| Clinical Scenario | First-Line | Alternative | Avoid |
|---|---|---|---|
| Vagina preserved + standing micturition is a priority | Urethral lengthening with explicit counseling that complication rates are higher than UL with concurrent vaginectomy (Claeys 2025 SR) — proximity of the retained vaginal cavity to the neourethra is the mechanism | Perineal urethrostomy (voiding from perineum) | "Routine" UL without counseling on the elevated complication risk specific to vagina-preserving anatomy |
| Vagina preserved + standing micturition is NOT a priority | Shaft-only phalloplasty without UL + perineal urethrostomy (Chen-Berli 2021 vulvoscrotoplasty; Moorefield 2024 Y-to-V) — eliminates the highest-morbidity component of binary phalloplasty | Vagina-preserving metoidioplasty without UL | UL "just in case" — this is the variant most likely to develop urethral fistula |
| Genital nullification in AMAB anatomy | Penectomy + bilateral orchiectomy + scrotectomy + spatulated perineal urethrostomy with seated voiding | Two-stage approach (gonadectomy first, then nullification) | Nullification in patients without explicit, durable counseling — irreversibility is absolute |
| Genital nullification in AFAB anatomy | Hysterectomy + BSO + colpectomy / vulvectomy + perineal urethrostomy | Staged approach (HBSO → vaginectomy → vulvectomy → urethrostomy) | Single-session nullification when patient pathways are unclear |
Counseling Considerations Unique to Non-Binary Patients
| Topic | Counseling Point |
|---|---|
| Irreversibility | Genital nullification is the most irreversible of all GAS procedures — complete removal of erogenous tissue with permanent loss of genital sexual sensation. Document explicit, durable consent.[3] |
| Fertility preservation | All procedures involving gonadectomy are permanently sterilizing; fertility-preservation referral is essential before any irreversible step.[1] |
| Evidence base | All variant GGAS procedures have high risk of bias in available studies — case series only, no comparative studies, no long-term follow-up (Claeys 2025 SR).[4] |
| Insurance coverage | Non-binary-specific procedures may face additional coverage barriers because criteria are often written around binary surgical endpoints.[6] |
| Postoperative gynecologic care | Patients with preserved vaginal canals require ongoing gynecologic screening including STI screening with vaginal swabs.[1] |
| Postoperative urologic surveillance | Patients with perineal urethrostomy require urology follow-up for stenosis surveillance — PU stenosis 5–22% at long-term follow-up, with 84–95% retreatment-free survival at median 55–61 months and 86% patient satisfaction in non-GAS PU literature (Klemm 2024 J Urol; Joshi 2024 Urology).[10][11][13] |
| Psychosexual adjustment | Permanent loss of genital sexual sensation after nullification requires structured psychological support; non-binary patients show distinct gender-development timelines compared to binary peers.[5][12] |
Treatment Database
| Procedure | Domain | Notes |
|---|---|---|
| Genital Nullification — AMAB (penectomy + bilateral orchiectomy + scrotectomy + perineal urethrostomy) | Genital Nullification | Complete penectomy with removal of corpora cavernosa + corpus spongiosum, bilateral orchiectomy + scrotectomy. Urethra transected and spatulated to create a perineal urethrostomy; flat perineal closure. Voiding seated. **Most irreversible of all GAS procedures** — permanent loss of genital sexual sensation. Ascha 2024 individually-customized procedures (n=16). |
| Genital Nullification — AFAB (HBSO + colpectomy + vulvectomy + perineal urethrostomy) | Genital Nullification | Hysterectomy + bilateral salpingo-oophorectomy, vaginectomy / colpectomy, removal of external vulvar structures, perineal urethrostomy. Voiding seated. Permanent loss of genital sexual sensation. Ascha 2024. |
| Phallus-Preserving Vaginoplasty (peritoneal / skin / intestinal lining) | Phallus-Preserving | Neovaginal canal in rectovesical / rectoprostatic space (same plane as standard vaginoplasty). Penile-skin tube NOT used (penis preserved). Lined with peritoneal flaps, skin grafts, or intestinal segments. Orchiectomy may or may not be performed. Penile erectile function and urethral anatomy preserved. Patients retain capacity for both penetrative and receptive intercourse. Lifelong dilation required. Limited outcome data — case series only (Claeys 2025 SR). |
| Shaft-Only Phalloplasty + Vulvoscrotoplasty (Chen-Berli OHSU) | Vagina-Preserving | Chen et al.<sup>[[8]](#ref8)</sup> 2021 *Plast Reconstr Surg*. Standard flap (RFFF / ALT) for shaft; vaginal canal preserved; labia majora reconfigured into vulvoscrotoplasty (scrotal appearance + vaginal access maintained). No UL → voiding from native perineal position. Erectile prosthesis can be placed later. Clitoral tissue may be buried at base or left exposed per patient preference. |
| Shaft-Only Phalloplasty + Y-to-V Advancement (Moorefield) | Vagina-Preserving | Moorefield 2024 *Plast Reconstr Surg*. Shaft-only phalloplasty with vaginal preservation. Clitoral shaft degloved and inset at ventral base of neophallus; redundant clitoral hood addressed with Y-to-V tissue transfer; reduction labiaplasty for aesthetics. No clitoral burial; no scrotoplasty. No UL. |
| Vagina-Preserving Metoidioplasty (no vaginectomy) | Vagina-Preserving | Standard clitoral release / suspensory-ligament division / degloving without vaginectomy. Scrotoplasty and UL are optional. Patients undergoing receptive vaginal sex after vagina-preserving metoidioplasty require **STI screening with vaginal swabs**. Vagina-preserving + UL carries higher urethral-complication rates than UL with vaginectomy (Claeys 2025 SR). |
| Standalone Bilateral Orchiectomy (as non-binary procedure) | Standalone Gonadectomy | Subinguinal or scrotal approach. Eliminates endogenous testosterone, allows reduced or eliminated antiandrogen therapy. Saltman 2023 NSQIP n=1,005: complication 3.7% (no different from cisgender nononcologic, p=0.6). **Scrotal skin must be left intact if any future binary or variant vaginoplasty is contemplated.** Outpatient. Hehemann/Walsh 2019 bridge-or-alternative-to-vaginoplasty framing. |
| Standalone Hysterectomy ± BSO (as non-binary procedure) | Standalone Gonadectomy | Reproductive surgeries had the highest satisfaction scores across all gender-identity groups (mean 4.6/5; Pletta 2025 *JAMA Netw Open*). Used standalone for dysphoria reduction and hormone-elimination without further genital reconstruction. Fertility-preservation referral before any irreversible step. |
| Perineal Urethrostomy (PU) — component within nullification or vagina-preserving phalloplasty without UL | Component / PU | Spatulated urethrostomy at the perineum; voiding seated. Non-GAS PU literature: **84–95% retreatment-free survival** at median 55–61 mo, 86% satisfied/very satisfied, median ICIQ-UI 0 (Klemm 2024 *J Urol*; Joshi 2024 *Urology*). Stenosis 5–22% — dorsal-plate-preservation technique reduces stenosis (Myers 2011). Avoid in irradiated tissue beds. |
| Shallow-Depth Vulvoplasty (as non-binary option) | Component / Vulvoplasty | Stelmar 2023 (32% chose shallow over full-depth in single-center series). Selected by non-binary patients seeking external feminine appearance without canal commitment. Same indications-and-counseling framework as feminizing-tab vulvoplasty; broadened SOC v8 non-binary language supports use as a primary non-binary endpoint. |
See Also
- GAS Overview (Special Populations)
- Non-Binary / Nullification (Special Populations)
- Revision & Salvage GAS
- Pharmacology — Gender-Affirming Hormone Therapy
References
1. Jackson Q, Yedlinsky NT, Gray M. Lifelong care of patients after gender-affirming surgery. Am Fam Physician. 2024;109(6):560–565.
2. Saltman AJ, Dorante MI, Jonczyk MM, et al. Outcomes of orchiectomy for gender-affirming surgery: a National Surgical Quality Improvement Program study. Urology. 2023;180:98–104. doi:10.1016/j.urology.2023.07.003
3. Ascha M, Rigsby S, Shoham M, et al. Individually customized gender-affirming genital procedures: techniques and considerations. J Sex Med. 2024;21(9):827–834. doi:10.1093/jsxmed/qdae075
4. Claeys W, Wolff DT, Zachou A, et al. Variant genital gender-affirming surgery: a systematic review. BJU Int. 2025;135(1):40–53. doi:10.1111/bju.16513
5. Skorochod R, Rysin R, Wolf Y. Gender-affirming surgery in non-binary patients: the importance of patient-centered care. J Plast Reconstr Aesthet Surg. 2023;84:176–181. doi:10.1016/j.bjps.2023.05.050
6. Pletta DR, Quint M, Radix AE, et al. Gender-affirming surgical history, satisfaction, and unmet needs among transgender adults. JAMA Netw Open. 2025;8(9):e2532494. doi:10.1001/jamanetworkopen.2025.32494
7. Kennis M, Duecker F, T'Sjoen G, Sack AT, Dewitte M. Gender-affirming medical-treatment desire and treatment motives in binary and non-binary transgender individuals. J Sex Med. 2022;19(7):1173–1184. doi:10.1016/j.jsxm.2022.03.603
8. Chen W, Cylinder I, Najafian A, Dugi DD, Berli JU. An option for shaft-only gender-affirming phalloplasty: vaginal preservation and vulvoscrotoplasty — a technical description. Plast Reconstr Surg. 2021;147(2):480–483. doi:10.1097/PRS.0000000000007579
9. Moorefield AK, Veith JP, Mills A, et al. Vaginal preservation in shaft-only phalloplasty: Y-to-V advancement technique for clitoral-hood redundancy and reduction labiaplasty. Plast Reconstr Surg. 2024;154(1):186e–189e. doi:10.1097/PRS.0000000000010932
10. Klemm J, Dahlem R, Schulz RJ, et al. Perineal urethrostomy for complex urethral strictures: long-term patient-reported outcomes from a reconstructive referral center and a scoping literature review. J Urol. 2024;212(5):738–748. doi:10.1097/JU.0000000000004169
11. Joshi EG, VanDyke ME, Langford BT, Franzen BP, Morey AF. Algorithmic midline approach to perineal urethrostomy is associated with long-term success and high patient satisfaction. Urology. 2024;190:133–139. doi:10.1016/j.urology.2024.03.016
12. Bouman WP, Thorne N, Arcelus J. Nonbinary gender identities. Best Pract Res Clin Obstet Gynaecol. 2023;88:102338. doi:10.1016/j.bpobgyn.2023.102338
13. Myers JB, Porten SP, McAninch JW. The outcomes of perineal urethrostomy with preservation of the dorsal urethral plate and urethral blood supply. Urology. 2011;77(5):1223–1227. doi:10.1016/j.urology.2010.10.041