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Metoidioplasty

Metoidioplasty is a genital surgical procedure for trans men in which the clitoris — enlarged by long-term testosterone treatment — is freed and shaped into a small neopenis. It is an alternative to phalloplasty.

What the procedure involves

Metoidioplasty is a surgical procedure for trans men in which the clitoris — which may be substantially enlarged by prolonged testosterone use — is freed and shaped as a neopenis. The procedure is less invasive than phalloplasty: no tissue is moved from arm or leg, no long operation, no prolonged donor-site morbidity.

Conditions

For metoidioplasty, at least one to two years of testosterone therapy is required, because clitoral hypertrophy is necessary for sufficient tissue. The resulting neopenis is usually 3-6 cm, and sexually sensitive due to preservation of the original nerves.

What the procedure does not offer

The neopenis does not have the dimensions for penetrative intercourse. Urination via an extended urethra (urethral extension) is possible in an additional procedure, but increases the complication risk (fistulas, stricture). Erection is possible via testosterone-driven swelling, but without mechanical support not firm enough for penetration.

Complications

Wound infection, poor wound healing, urinary tract complications (especially with urethral extension — fistulas in 15-40% of cases, strictures substantial), sensory loss or hypersensitivity. The procedure generally has a shorter recovery than phalloplasty, but the outcome is more dependent on individual clitoral response to testosterone.

Hysterectomy and oophorectomy

Metoidioplasty is often combined with or preceded by removal of the uterus and ovaries. This definitively ends menstruation and has hormonal consequences (dependence on external testosterone for life).

Comparison with phalloplasty

Phalloplasty produces a visually larger neopenis with more possibilities for erectile prostheses, but at the cost of a large donor scar on arm or leg, longer operation, more intensive recovery and higher complication rates. Metoidioplasty is technically simpler, better preserves sexual sensitivity, but produces a visually smaller outcome.

Practical context Netherlands

In the Netherlands, metoidioplasty is offered in specialised centres (Amsterdam UMC), with waiting times that can mount up. Reimbursement via basic insurance requires medical indication and pre-track; the exact extent of cover may shift with insurer and NZa guidelines.

Regret and reversibility

Unlike a mastectomy or vaginoplasty, metoidioplasty is limited in terms of tissue — the clitoris is repositioned, not removed. Yet full recovery to pre-operative anatomy is complex. Detransition after metoidioplasty is documented; the outcome is a neopenis-like structure that still works functionally and sexually in part, but is no longer visually 'cis-passing'.

Technique

The procedure uses the patient's own tissue and requires no donor skin from arm or leg. The suspension of the clitoris is cut so that it protrudes more and functions as a small neopenis. Often combined with urethral extension (to enable standing urination) and scrotum construction with testicular prostheses.

Advantages and limitations

Advantages compared to phalloplasty are a shorter operation and recovery period, preservation of sexual sensation and no scars at donor sites. The size of the organ is usually small, which limits penetrative sex and, with urethral extension, increases the chance of complications (strictures, fistulas).

Availability in the Netherlands

Metoidioplasty is performed in the Netherlands, among other places at Amsterdam UMC. Treatment takes place after an extensive diagnostic track and with a referral via the gender clinic.