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Sperm cryopreservation during transition

Sperm cryopreservation is the freezing of sperm cells for future use in reproduction. In trans women it is discussed before starting feminising hormone therapy or an orchiectomy.

What sperm cryopreservation entails

Sperm cryopreservation ('sperm freezing' in everyday language, 'cryopreservation' in technical literature) is the freezing and storage of sperm cells for future use. In transition from male to female birth sex, this fertility option is offered prior to feminising hormone therapy or orchiectomy, because both procedures substantially and possibly permanently reduce fertility.

Why beforehand

Estrogen suppresses spermatogenesis within weeks to months. In some patients production recovers after stopping hormones, in others it does not — prediction is difficult. Orchiectomy eliminates production definitively. Those who want to conceive children biologically in the future must therefore have sperm frozen before starting hormones or before an orchiectomy.

Procedure

Sperm production via masturbation, sometimes via medical extraction if production is already suppressed (TESE — testicular sperm extraction). Processing and quality control in a fertility laboratory. Freezing in liquid nitrogen at -196°C. Storage period in principle unlimited, although practical limits apply via contracts and reimbursements.

Reimbursement in the Netherlands

For transgender persons, cryopreservation has largely been reimbursed via basic insurance since the 2010s, provided there is a fertility indication preceding gender-affirming treatment. Storage costs over the longer term may be billed separately. Policy may differ somewhat per health insurer; specific coverage must be checked in advance.

For minors

This is a complex subject. Cryopreservation requires sexually mature ejaculation. In boys who start puberty blockers before full sexual maturity, conventional cryopreservation is not possible. Experimental techniques — freezing testicular tissue for future reproductive technology — are under development but not routinely available. A twelve-year-old on puberty blockers thus loses the standard fertility option that his fifteen-year-old self could still have used.

Undiscussed in informed consent

Documented cases — internationally and in the Netherlands — where patients realised afterwards that fertility could have been preserved but that the conversation had not been had (or only in jargon). This touches directly on informed consent for gender care: without an explicit fertility discussion, consent for suppressive hormones or orchiectomy is not fully informed.

Future use

Frozen sperm can be used for IUI, IVF or ICSI. The pregnancy is carried by a partner, surrogate or in countries where that is permitted. For trans women who later detransition, cryosperm remains an option for biological parenthood — where without cryopreservation the option is lost.

What this means for the care model

A serious care system documents per patient whether the fertility discussion has taken place, prior to suppressive interventions. The reality in Dutch gender clinics is that this conversation is not uniformly conducted — especially with minors, where it is both medically (technique) and ethically (capacity of a child to oversee the absence of future children) extra complicated.

Why before hormone therapy

Estrogen therapy and anti-androgens suppress sperm production. The recovery thereof after stopping is incomplete and variable; orchiectomy makes the loss definitive. International guidelines (Endocrine Society 2017, WPATH SOC-8 2022) therefore advise discussing fertility preservation in good time — preferably before the start of hormonal treatment.

Procedure

Sperm is collected (usually by masturbation) at a fertility clinic, assessed for quality and frozen in liquid nitrogen. Storage can last many years. If desired, it can later be used for IUI (intrauterine insemination) or IVF/ICSI with a partner or surrogate.

Reimbursement in the Netherlands

Fertility preservation with medical indications — including gender dysphoria — is reimbursed in the Netherlands under the basic insurance for freezing and in principle for storage; conditions and storage periods differ per health insurer.