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 | Best for / indication |
|---|---|---|
| Genital Nullification — AMAB (penectomy + bilateral orchiectomy + scrotectomy + perineal urethrostomy) | Genital Nullification | AMAB nullification creating smooth perineal contour with perineal urethrostomy. |
| Genital Nullification — AFAB (HBSO + colpectomy + vulvectomy + perineal urethrostomy) | Genital Nullification | AFAB nullification combining HBSO, colpectomy, vulvectomy, and perineal urethrostomy. |
| Phallus-Preserving Vaginoplasty (peritoneal / skin / intestinal lining) | Phallus-Preserving | Canal creation while preserving the native penis; uses peritoneal, skin, or intestinal lining. |
| Shaft-Only Phalloplasty with Vaginal Preservation | Vagina-Preserving | Phalloplasty without urethral lengthening for patients prioritising vaginal preservation. |
| Vagina-Preserving Metoidioplasty (no vaginectomy) | Vagina-Preserving | Metoidioplasty for patients prioritising vaginal preservation; spectrum from clitoral release. |
| Standalone Bilateral Orchiectomy (as non-binary procedure) | Standalone Gonadectomy | Stand-alone gonadectomy as non-binary endpoint or bridge to later procedures. |
| Standalone Hysterectomy ± BSO (as non-binary procedure) | Standalone Gonadectomy | Stand-alone hysterectomy for dysphoria reduction without further genital reconstruction. |
| Perineal Urethrostomy (PU) — component within nullification or vagina-preserving phalloplasty without UL | Component / PU | Urinary outflow component of nullification or vagina-preserving phalloplasty without UL. |
| Shallow-Depth Vulvoplasty (as non-binary option) | Component / Vulvoplasty | Non-binary patients seeking external feminine appearance without canal commitment. |
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