Testosterone suppresses oestrogen locally, which can thin and dry vaginal tissue in trans men and nonbinary people, causing discomfort, pain, or bleeding. This is called vaginal atrophy or genitourinary syndrome. It is common, treatable, and nothing to be embarrassed about. Topical oestrogen is the most effective treatment and does not interfere with testosterone therapy or masculinisation.
What is vaginal atrophy and who does it affect?
Vaginal atrophy is the thinning, drying, and inflammation of vaginal tissue that happens when oestrogen levels drop. You might also hear it called genitourinary syndrome of menopause in older medical literature, though that name was never designed with trans people in mind and does not describe the experience well. The underlying mechanism is the same: without enough oestrogen locally, the tissues that line the vagina and the surrounding area lose their elasticity and their ability to stay moist and comfortable.
For trans men and nonbinary people on testosterone, this is a real and under-discussed part of what testosterone therapy can do. Many people are not warned about it when they start, and many more feel too uncomfortable to raise it with a doctor later. This is a medical issue like any other. It has nothing to do with your gender identity, and it does not mean your body is resisting your transition. It is a side effect of hormone therapy, and it is one we can address.
It does not affect everyone on testosterone. Some people notice symptoms within months of starting; others never experience them at all, or only develop them years in. There is no reliable way to predict who will be affected, which is why it is worth knowing what to look for.
What causes vaginal atrophy in trans men?
Testosterone suppresses oestrogen. That is part of what it does, and for most trans men and transmasculine people, that suppression is welcome. The difficulty is that vaginal tissue is particularly sensitive to oestrogen, and when local oestrogen levels fall, that tissue changes. It becomes thinner and less elastic. The cells that produce natural lubrication slow down. The local pH shifts, which can also make the area more susceptible to irritation and infection.
This is not a failure of your testosterone therapy. It is simply the consequence of oestrogen being withdrawn from tissue that relied on it. The same process happens in menopausal women for the same reason: falling oestrogen. The treatment is the same too.
The amount of testosterone you take does not straightforwardly predict whether you will develop atrophy, and nor does the duration of your therapy. People on lower doses can be affected; people on higher doses sometimes are not. What seems to matter most is how low your local oestrogen levels fall, and that varies from person to person.
What symptoms should I watch for?
The symptoms range from mild to significant, and they can develop gradually enough that you might not connect them to your hormone therapy at first.
- Dryness or a sensation of tightness
- Itching or burning that is persistent rather than linked to infection
- Pain or discomfort during penetrative sex or masturbation
- Light bleeding after sex or after an internal examination
- Urinary symptoms, including urgency, frequency, or discomfort when urinating, because the urethra is also affected by local oestrogen loss
- Difficulty with internal examinations, including smear tests, which can become painful when tissue has thinned
If you have a cervix and are due a smear test, vaginal atrophy can make that examination extremely uncomfortable or even impossible without treatment first. That is a practical reason to address it even if the everyday symptoms feel manageable.
Worth knowing: symptoms from atrophy tend not to resolve on their own, unlike some other side effects that settle over time. They are more likely to worsen gradually if left untreated, which is a good reason to act earlier rather than later.
How is vaginal atrophy treated?
The most effective treatment is topical oestrogen applied directly to the affected tissue. This comes in several forms: a cream, a gel, a pessary inserted vaginally, or a small ring that sits inside the vagina and releases oestrogen slowly over several weeks. Your doctor or prescriber can help you work out which form suits you best.
Topical oestrogen works locally. Because it is applied directly to the tissue rather than taken systemically, the amount absorbed into the bloodstream is very small. That matters, because it means it does not meaningfully raise your systemic oestrogen levels and does not interfere with what testosterone is doing elsewhere in your body. Your masculinisation is not at risk. Your voice, your body hair, your clitoral growth, none of that changes. This is the question I hear most often from trans men considering this treatment, and the answer is clear: local oestrogen and testosterone therapy are compatible.
Non-hormonal options can help alongside or instead. A good quality vaginal moisturiser used regularly (not just before sex) can improve comfort and tissue hydration over time. Lubricants are helpful for sexual activity but are not a substitute for a moisturiser for ongoing care. Look for products that are pH-balanced and free from glycerin and parabens, which can irritate already sensitive tissue.
Some people find that dilators help maintain tissue flexibility, particularly if penetration has become painful or if internal examinations have been difficult. This is not something to push through under pressure, but gentle, consistent use with adequate lubrication can help tissue adapt.
What about talking to a doctor?
Many trans men tell me that they find it hard to raise gynaecological symptoms with a doctor, particularly when those appointments already feel complicated by gender. That difficulty is real, and it matters. But vaginal atrophy is a medical issue that your doctor should be able to address without it becoming a conversation about whether you are trans enough, or whether testosterone is right for you. A good clinician treats the symptom in front of them.
If your current doctor is not someone you feel able to talk to about this, that is worth taking seriously. Accessing a clinician who is familiar with trans healthcare can make a meaningful difference to how these conversations go. GenderGP can help with gender-affirming medical care including prescribing, monitoring, and supporting people through exactly the kind of issue that falls between the cracks of standard care.
Topical oestrogen is available on prescription, and the evidence for its safety in trans men on testosterone is consistent with what we know from its use more broadly: applied locally, it works where it is needed without systemic effects that would concern most prescribers.
Does using oestrogen mean I am less trans?
No. Using a small amount of localised oestrogen to treat a painful physical symptom does not change who you are, does not affect your transition, and does not send a signal of any kind about your gender identity. Bodies sometimes need specific things to function comfortably, and this is one of them. Taking insulin does not make someone less committed to managing their diabetes in every other way. Using topical oestrogen does not make a trans man less of a man.
I think this question matters because I know how much it weighs on people's minds, even when they know intellectually that the answer is obvious. The fear that treating one part of your body might somehow unravel something else you have worked hard for is understandable. But the body does not work that way, and neither does identity.
What if I have had or am planning a hysterectomy?
Vaginal atrophy can still occur after a hysterectomy, because the vaginal tissue and urethra remain and still depend on local oestrogen. The underlying cause is the same: testosterone suppressing oestrogen locally. Treatment is also the same. Having a hysterectomy does not resolve atrophy, and if you are experiencing symptoms after surgery, topical oestrogen is still a relevant option to discuss with your doctor.
If you are planning a vaginectomy as part of gender-affirming surgery, that changes the picture significantly, and surgical teams will discuss what is relevant for your specific situation ahead of and following the procedure.
The short version
Vaginal atrophy is a real, common, and treatable consequence of testosterone therapy in trans men and nonbinary people. It happens because testosterone suppresses oestrogen locally, and vaginal tissue needs oestrogen to stay healthy. The symptoms, dryness, pain, itching, bleeding, urinary discomfort, can range from mild to significant. Topical oestrogen is the most effective treatment, it stays local, it does not raise systemic oestrogen, and it does not interfere with testosterone therapy or masculinisation. Non-hormonal moisturisers and lubricants help alongside. And no: using oestrogen to treat a physical symptom does not make you less trans.
If there is a topic that you would like me to cover, just let Sammy know.
Dr Helen Webberley is a Gender Specialist, Medical Educator, and advocate for trans and gender-diverse people. She is the founder of GenderGP and writes about gender identity, trans healthcare, and the lives lived around them.
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