Hormones, surgery and fertility for trans people: making informed decisions without pressure

Written by Rocío Rodríguez Boza

General Health Psychologist · COPAO AN13748

Clinical review: Héctor Lozano Jiménez, General Health Psychologist · COPAO AN11777

Published 19 September 2026

Some people arrive at a consultation with one very clear body-related goal and considerable uncertainty about everything else. Others know who they are but are unsure whether they want to change their body. Some have wanted one intervention for years; others have only recently begun thinking about it. None of these positions makes somebody more or less authentically trans.

This article does not replace endocrinology, surgery or reproductive medicine. Its purpose is to help you think more clearly about decisions that can bring meaningful benefits while also involving risk, limits, emotional consequences and uncertainty that differ between interventions and between people.

Being trans does not create an obligation to want medical interventions

A person can be fully trans or non-binary without hormones, surgery or fertility preservation. They can also want some medical changes and not others.

The phrase “complete transition” implies an external bodily endpoint that everybody should reach. There is no such universal endpoint. Transition may be social, legal, medical, combined, partial or change over time. Our guide to social, legal and medical transition explores those distinctions in more detail.

Not wanting medical treatment does not mean you are “not trans enough”. Identity and treatment preference are different questions.

Informed consent is much more than signing a form

An informed medical decision means understanding the purpose of an intervention, potential benefits, risks, alternatives, uncertainty and follow-up well enough to make a choice. It also means being able to ask questions and knowing which outcomes cannot be predicted precisely.

Zero risk does not exist. Nor can a clinician promise that you will never later have doubts. A realistic question is whether you understand enough to decide in a way that fits your present aims and values.

WPATH's SOC8, still the organisation's current published version in September 2026, emphasises individualised assessment and discussion of reproductive effects and fertility-preservation options before interventions that may affect fertility. SOC8 is professional clinical guidance, not a law or a guarantee of access within any particular health system.

Hormones: real physical changes, but not one identical outcome

Gender-affirming hormone treatment can change secondary sex characteristics. The degree and pattern of response vary with genetics, age, health, pre-existing physical characteristics, treatment duration and other biological factors.

It is not responsible to promise one exact result. Two people receiving clinically similar care can experience different physical changes. Nor can every desired effect be selected in isolation: one treatment may produce several changes together.

Different changes also behave differently if treatment later stops. Some may lessen over time, while others can persist —for example, a deeper voice after masculinising treatment or breast development after feminising treatment. Fertility can also be affected in variable ways, and recovery should not be assumed to be guaranteed for every person.

A useful question for the clinical team is therefore: “Of the changes that matter to me, which tend to reverse, which may persist, and what do we actually know in my situation?”

There is no universal timeline of physical change

Online charts showing “month 1, month 3, year 1” may be useful as broad clinical education, but they are not a forecast for one body. Physical change is gradual and highly variable.

Before-and-after photographs also hide context: genetics, age, lighting, image selection, exact treatments, other procedures, elapsed time and health. Using one person's timeline as a personal prediction can create expectations no clinician can guarantee.

Ocnos tool 1: what am I expecting from this change?

A physical intervention cannot guarantee passing, acceptance or happiness

Somebody may think, “if I start treatment, people will finally see me the way I want”. That wish can include a genuine body goal as well as safety, recognition, social pressure, fear of being read as trans or previous rejection.

There is no “pure” motivation that has to be discovered before a decision is valid. It can still help to distinguish “I want this change in my body” from “I feel I must do this so that nobody rejects me”. Social recognition depends on many factors and no intervention can promise it. See passing and visibility for more on that pressure.

Hormones, sexual desire and sexual response

Some people describe changes in desire, arousal, sensitivity or sexual response during hormone treatment. Experiences vary and can also be influenced by relationships, mood, medication, general health, stress and expectations.

If a change is concerning, discuss it with the clinical team rather than assuming it is “just normal” or changing treatment independently. For the psychological and relational side, see sexuality and intimacy for trans people.

Hormones and mood: avoid overly simple explanations

Medical treatment may coincide with reduced gender-related distress, greater body comfort or relief at moving towards a desired goal. It can also coincide with adjustment, unmet expectations, relationship stress or mental-health problems that already existed.

Adult outcome reviews show favourable associations across several domains among people who seek and receive care, but certainty varies and the research does not justify reducing all anxiety or depression to “the hormones”. Significant emotional changes deserve clinical assessment.

Other health conditions are part of the decision

Hypertension, diabetes, migraine, epilepsy, autoimmune disease, clotting problems and many other conditions can change risk assessment or follow-up. A public article cannot tell one person whether a condition allows or rules out treatment.

Before starting or changing medical care, the team needs relevant history, allergies, current medicines and supplements. That information is not an identity test; it is part of individualised safety.

Prescribed medication and self-medication

Do not stop, change or adjust prescribed medication on the basis of online information. Changes to prescribed treatment should be reviewed with the responsible clinical team.

If you are already self-medicating with hormones or related substances, shame does not make care safer. Seek healthcare and describe honestly what you are using so clinicians can assess general health, possible interactions and follow-up. This article provides no instructions for obtaining, preparing, dosing or combining treatment independently.

What if I want to stop or change my goals?

A person can pause a decision, stop wanting a particular change, prefer another goal or reinterpret what they need. That does not automatically make their identity false or mean the earlier decision was irrational.

“I want to stop”, however, should not become a medical instruction taken from an article. Prescribed treatment may need specific review to decide how it can be changed safely and what monitoring is needed.

If you are revising goals or making sense of an earlier transition decision, see detransition and re-identification support.

Ocnos tool 2: want / don’t want / don’t know

Surgery: there is no single “trans surgery”

Different surgical interventions exist for different body-related goals. A person may want one, several, none, or need more time before considering a particular procedure.

It is therefore misleading to talk about “the operation” as though everybody is aiming for one body. This article does not provide a catalogue of techniques. A surgical decision requires procedure-specific information about purpose, risks, benefits, alternatives, recovery, possible complications and limits of the expected result.

Cooney and colleagues' 2025 systematic review found that gender-affirming healthcare —including hormonal and surgical care— may improve important outcomes among adults who seek it, while certainty ranged from moderate to very low depending on the outcome. That heterogeneity matters: a population average is not a substitute for an individual surgical discussion.

Surgery can relieve a particular source of distress without solving an entire life

For some people, one surgical intervention is profoundly meaningful. It may reduce a specific source of dysphoria or increase bodily comfort. Recognising that potential does not mean presenting surgery as an automatic solution for self-esteem, trauma, relationships, general anxiety, discrimination or social acceptance.

Somebody can be satisfied with a physical change and still need support in other areas. An operation has not “failed” simply because it did not solve problems it was never designed to solve.

Ocnos tool 3: surgical decision in layers

“What if I regret it?”

No important human decision comes with a guarantee of zero regret. Regret can relate to having an intervention, an outcome that differs from expectations, complications, later changes in goals or identity, or feeling that a wanted intervention was delayed for too long.

Published systematic reviews of regret following gender-affirming surgery have reported low pooled rates, but one percentage should not be turned into a personal promise. Studies differ in procedures, definitions of regret, follow-up periods, populations and ability to retain participants over time.

The aim of good decision-making is not perfect certainty that you will never regret anything. It is sufficient information, autonomy, realistic expectations and an honest understanding of uncertainty.

Medical uncertainty is not the same as identity uncertainty

You can be clear about your identity and still have doubts about treatment, surgery, fertility or a possible side effect. Treating every medical question as “perhaps you are not really trans” makes honest decision-making harder.

The reverse is also possible: somebody may still be exploring identity and know very clearly that they do not want one particular intervention. Identity and medical plan are not interchangeable.

Fertility: an important conversation without turning it into an obligation

Some hormone treatments and some surgeries can affect fertility or future reproductive options. SOC8 recommends discussing known effects, areas that remain uncertain and fertility-preservation options before interventions that may affect fertility.

De Roo and colleagues' 2025 systematic review shows why simple claims should be avoided. Changes in reproductive organs and gametes have been reported during gender-affirming hormone therapy, while important questions remain about reversibility and long-term reproductive outcomes. The authors recommend assessing reproductive wishes and fertility-preservation needs individually and revisiting them over time.

Receiving information does not oblige you to preserve anything. Fertility preservation does not guarantee a future pregnancy or biological child either. The decision depends on your values, circumstances, available options and the intervention you are considering.

“I don't want children” deserves to be taken seriously

Biological reproduction is not a requirement for a full life. If you know that you do not want children, you should not have to perform ambivalence in order to be respected.

Informed consent still includes understanding important consequences before an intervention. Hearing fertility information is not the same as being pressured to preserve. The decision remains yours.

“I don't know whether I want children” is also a valid answer

Making a present decision about a future reproductive possibility can be uncomfortable precisely because the future is uncertain. Not everybody can answer with a firm yes or no.

It may help to separate two questions: “Do I know whether I want to become a parent?” and “Do I want to preserve a biological option if there is a reasonable way to do so?” Neither has one morally correct answer.

Ocnos tool 4: fertility without obligation

When family members say “we want grandchildren”

Families may feel grief, fear or concern about the possibility of losing particular reproductive options. Those feelings can be discussed. Future grandchildren, however, are a family wish; the reproductive and bodily decision belongs to the person themselves.

A useful conversation can recognise both that there are medical consequences worth understanding and that nobody owes somebody else fertility preservation.

Comparing yourself with other trans people can distort your own goal

Social media displays timelines, surgical outcomes and body changes. These can be informative and reduce isolation. They can also create an unusually selected visual reference.

A photograph does not tell you every intervention, health factor, genetic influence, lighting choice, edit, time period or earlier expectation. If “I like this result” becomes “I must achieve exactly this”, return to your own goal. See also trans identity and social media.

Ocnos tool 5: comparison vs personal goal

Passing can be a real motivation without becoming a command

Wanting other people to read you in a particular way may be connected with comfort, safety, privacy or recognition. That is not automatically a “wrong” reason.

It can still be useful to notice the difference between “I want this change” and “I feel I have to do this to be accepted or safe”. Both can exist at once. They can be explored without judging either.

Making decisions during an emotional crisis

“I need this now or I can't cope” may express genuine distress. The answer should not be to dismiss that pain. It also does not mean every medical decision should be made immediately at the peak of desperation.

Where there is crisis, severe impulsivity, hopelessness or risk, enough emotional safety may need to be restored for the person to understand options and participate meaningfully in a decision. That is not the same as indefinitely blocking treatment.

Anxiety, depression, trauma, autism or ADHD are not automatic vetoes

A mental-health condition or neurodivergence does not automatically remove capacity to decide. Some people may need more structure, time, written information, parallel treatment for other problems or adapted support.

The clinical question is whether something is materially interfering with understanding, risk or functioning, not whether a diagnosis exists. For autistic people or those with ADHD, communication and executive-function support may improve decision quality without invalidating it.

Ocnos tool 6: mine / other people’s / uncertainty

Clarification, a second clinical view and time to ask questions

For an important decision, it can be reasonable to ask for another explanation, request current written information or ask whether another clinical opinion is available within the system where you receive care.

You do not need specialist-level medical knowledge to consent. You do need an explanation clear enough to understand what you are agreeing to, what alternatives exist and what uncertainty remains.

The search for absolute certainty can become another source of anxiety

Reading a hundred testimonies, checking hundreds of photographs or asking the same question in several forums can look like careful research. Sometimes it provides new information. At other times it becomes checking: each answer briefly reassures you, followed by another doubt.

Pachankis and colleagues' work on cognitive flexibility can be applied here without copying their exercises. An emotionally important situation can contain more than one plausible outcome at once. Acknowledging uncertainty does not require assuming the worst, and it does not require an impossible guarantee.

Ocnos tool 7: do I need information, or am I searching for certainty?

If you need the healthcare pathway, use the dedicated guides

For how the Andalusian public pathway currently works for adults, see trans healthcare for adults in Andalusia. If the decision concerns a child or teenager, use trans healthcare for children and teenagers in Andalusia.

The focus here is different: how to think through a medical decision without assuming that transition has one compulsory sequence or that identity must be demonstrated through interventions.

Frequently asked questions about hormones, surgery and fertility

Sources

1. World Professional Association for Transgender Health (WPATH). Standards of Care for the Health of Transgender and Gender Diverse People, Version 8 (SOC8). Still the current version published by WPATH in September 2026; chapters include hormone therapy, surgery, reproductive health and individual assessment. WPATH SOC8.
2. Cooney, E. E. et al. (2025). Provision of gender-affirming care for trans and gender-diverse adults: a systematic review of health and quality of life outcomes, values and preferences, and costs. EClinicalMedicine, 88, 103458. PubMed.
3. Ren, T., Galenchik-Chan, A., Erlichman, Z. & Krajewski, A. (2024). Prevalence of Regret in Gender-Affirming Surgery: A Systematic Review. Annals of Plastic Surgery, 92(5), 597–602. PubMed.
4. De Roo, C. et al. (2025). Fertility in transgender and gender diverse people: systematic review of the effects of gender-affirming hormones on reproductive organs and fertility. Human Reproduction Update, 31(3), 183–217. PubMed.
5. Pachankis, J. E., Harkness, A. R., Jackson, S. D. & Safren, S. A. (2022). Transdiagnostic LGBTQ-Affirmative Cognitive-Behavioral Therapy: Therapist Guide. Oxford University Press.