Menopause and breast cancer
Menopause symptoms during and after breast-cancer treatment
Hot flushes, disrupted sleep and vaginal or sexual symptoms can affect life during and after breast-cancer treatment. You can ask for help with these symptoms while keeping your cancer care central to treatment decisions.
Where can I start?
You can discuss menopause symptoms with your GP, breast-care nurse or oncology team during or after treatment. Nonhormonal support may help. Your cancer treatment and current medicines matter when choosing an approach, and vaginal symptoms may need a separate assessment.
Why symptoms may arrive suddenly
Some breast-cancer treatments change ovarian function or reduce the effect of oestrogen, and can bring on menopause or symptoms that resemble it. Symptoms can begin abruptly and feel intense, although experiences vary. Treatment-related changes to periods do not by themselves tell you whether menopause is permanent.
Hot flushes and night sweats may disrupt sleep. Vaginal dryness, discomfort with sex and changes in desire can also matter. You do not have to make hot flushes your priority if something else is affecting you more.
What to have handy
Useful information includes the type and timing of your cancer treatment, any ovarian surgery or ovarian suppression, and your current medicines. If you take hormone-blocking treatment, sometimes called endocrine therapy, include its name. This is different from menopausal hormone therapy (MHT, also called HRT) used for symptom relief.
An available treatment summary can help. You do not need to reconstruct details you do not know: ask your breast-care team where to find them. Also note your symptoms, period changes, previous symptom treatments, supplements and the improvement you most want.
How to discuss symptom support
Ask which nonhormonal approaches are relevant to your main concern. Menopause-focused cognitive behavioural therapy (CBT), a structured talking therapy, can help reduce how disruptive symptoms feel. Medicines and other approaches have also been studied, but evidence from people without breast cancer does not answer every question for people receiving cancer treatment.
Your GP and cancer team may need to consider a choice together. Ask who will advise on the decision and who to contact about benefit, side effects or worsening symptoms. Some medicines can interact with cancer treatment, so a complete medicine and supplement list matters. If side effects are making treatment difficult, contact your treating team to discuss support rather than changing endocrine therapy yourself.
Give vaginal and sexual symptoms their own conversation
Hot-flush treatment does not necessarily address vaginal discomfort. Describe dryness, pain, irritation, urinary changes or bleeding separately, including what you have tried. An examination may help distinguish dryness from infection, skin problems or another cause.
Lubricants and vaginal moisturisers are nonhormonal options to discuss for comfort. If symptoms persist, ask what further assessment or treatment fits your situation.
A history of breast cancer can make systemic MHT — hormone therapy that acts throughout the body — unsuitable. Discuss this with your treating team before considering hormone treatment. Vaginal hormone treatment and systemic MHT used for symptoms such as hot flushes require separate consideration. Ask how your cancer history and current treatment affect each option, and whether your oncology or breast-care team needs to advise.
Further reading
Breast Cancer Network Australia: managing menopausal symptoms provides information about symptoms during and after treatment.
When to seek urgent care
Follow the urgent-contact advice provided by your cancer team. Fever or feeling acutely unwell during chemotherapy needs immediate medical advice, not a routine menopause appointment. New bleeding, bleeding after sex or any bleeding after menopause needs checking. Persistent vaginal pain, sores or discharge may need an examination. New or worsening symptoms should not automatically be attributed to menopause or treatment. Seek emergency care for severe pain, heavy bleeding with faintness, chest pain or severe breathing difficulty; call 000 in an emergency.
Related pages
FAQs
Do I have to wait until cancer treatment finishes to ask for help?
No. You can raise symptoms while treatment is ongoing. Your current treatment matters when deciding which symptom support is suitable, so involve your treating team in that discussion.
Do stopped periods mean menopause is permanent?
Not necessarily. Treatment can affect periods temporarily or permanently. Your age and treatment history matter, so ask your cancer team what the changes mean in your situation.
What if side effects are making cancer treatment hard to manage?
Contact your treating team and describe the symptoms and how they affect you. Ask what symptom support is available and who should review your medicines. Keep decisions about any change to endocrine therapy with that team.
Is vaginal dryness covered by a hot-flush treatment?
Not necessarily. Vaginal symptoms need their own assessment and treatment discussion. Describe any pain, irritation, urinary symptoms or bleeding as well as dryness.
What should I ask about hormone treatment after breast cancer?
A history of breast cancer can make systemic MHT unsuitable. Ask which symptoms the treatment would address, how your cancer history affects the benefits and risks, and whether your oncology team needs to advise. Systemic MHT and vaginal hormone treatment require separate consideration. The answer depends on your circumstances.