In brief: Perimenopause is the time leading up to menopause, when hormone changes can affect periods, temperature regulation, sleep, mood, concentration, joints, sexual health, and bladder or vaginal comfort. In otherwise healthy people aged 45 or over, diagnosis is usually based on symptoms and menstrual changes rather than routine hormone tests. HRT is an effective option for many symptoms, but the right preparation and dose depend on personal history, whether the womb is present, preferences, and individual benefits and risks.
What are perimenopause and menopause?
Perimenopause describes the transition before menopause, when ovarian hormone levels fluctuate and periods may change. Menopause is reached after 12 months without a menstrual period when no other cause, including hormonal contraception, explains the absence. The timing and experience differ between individuals. Some people notice only cycle changes, while others have symptoms that affect work, sleep, relationships, or quality of life.
Early or premature menopause needs particular attention. If symptoms or absent periods occur before age 45, speak with a clinician because assessment and long-term health considerations can differ. People who have had surgery, chemotherapy, radiotherapy, or treatments that affect ovarian function may also need an individual pathway.
Common symptoms and when to seek advice
Symptoms may develop gradually and can change over time. They include:
- changes in period frequency, flow, or duration;
- hot flushes and night sweats;
- sleep difficulty and daytime tiredness;
- low mood, anxiety, irritability, reduced confidence, or problems with memory and concentration;
- headaches, muscle aches, or joint discomfort;
- vaginal dryness, discomfort during sex, reduced desire, or recurrent urinary symptoms.
These experiences are real, but not every symptom in midlife is caused by menopause. Thyroid conditions, anaemia, pregnancy, medication effects, mood disorders, and other health problems may overlap. A thoughtful assessment considers the pattern, medical history, examination when needed, and alternative explanations.
Bleeding after menopause should always be checked, even when it happens once or appears light. Seek prompt medical advice for a new breast lump, unexplained chest pain or breathlessness, symptoms of a blood clot, or a sudden severe neurological symptom. Heavy or persistent bleeding during perimenopause also deserves review rather than being assumed to be hormonal.
How is perimenopause diagnosed?
NICE recommends identifying perimenopause without laboratory tests in otherwise healthy people aged 45 or over who have new vasomotor symptoms, such as hot flushes or sweats, alongside menstrual changes. Menopause can usually be identified in this age group after at least 12 months without periods when hormonal contraception is not being used. Hormonal treatments can make the pattern harder to interpret.
Routine tests for markers such as anti-Müllerian hormone, oestradiol, antral follicle count, or ovarian volume should not be used to identify menopause in this group. Follicle-stimulating hormone testing has a more limited role, including some people aged 40 to 45 with relevant symptoms and those under 40 when premature ovarian insufficiency is suspected.
The consultation should still consider blood pressure, relevant examinations, cervical and breast screening, cardiovascular and bone-health factors, contraception, medicines, family history, and the impact of symptoms. The purpose is not only to attach a label, but to build a safe and useful plan.
Understanding HRT and other treatment options
Hormone replacement therapy
HRT replaces oestrogen that declines around menopause and can be delivered through tablets, patches, gels, or sprays. If you still have a womb, progestogen is generally needed alongside systemic oestrogen to protect the womb lining. After a total hysterectomy, oestrogen-only HRT may be appropriate. Vaginal oestrogen can be considered for local vaginal and urinary symptoms and has a different pattern of absorption from systemic treatment.
The best route depends on symptoms, medical history, preferences, and risk factors. A discussion should cover expected benefits, common side effects, important risks, bleeding patterns, contraception, and how long it may take to judge response. The balance is individual and can change over time; a friend’s prescription is not a safe template for your own care.
Non-hormonal and supportive approaches
HRT is not the only option. Menopause-specific cognitive behavioural therapy can help some people manage vasomotor symptoms, sleep problems, or low mood, either alongside HRT or when HRT is not wanted or suitable. A clinician may discuss selected non-hormonal medicines based on the main symptom and health history.
Regular movement, resistance and weight-bearing exercise, a balanced diet, adequate sleep routines, smoking cessation, and moderating alcohol can support general, cardiovascular, and bone health. These measures are valuable but should not be presented as a personal failure if symptoms remain troublesome. Complementary or “natural” products may vary in dose, purity, interactions, and evidence; tell your clinician and pharmacist about anything you use.
Starting and reviewing treatment
Shared decision-making means agreeing what improvement you hope to see and how it will be measured. Before starting, note the most disruptive symptoms, current bleeding pattern, sleep, mood, sexual or urinary symptoms, and any concerns about treatment. Ask why a particular preparation is suggested and what alternatives exist.
NICE recommends reviewing treatment about three months after it starts and annually thereafter, unless symptoms, side effects, or bleeding concerns require an earlier appointment. A review considers effectiveness, tolerability, bleeding, blood pressure or other relevant health factors, and whether the dose or delivery method should change. Do not stop or adjust prescribed treatment without advice if you are experiencing a problem; contact the prescriber so it can be assessed safely.
You can explore the clinic’s menopause and HRT care and the broader specialist women’s health services.
Questions to ask during a menopause consultation
- Could another condition or medicine be contributing to these symptoms?
- Do I need any tests, and what question would each test answer?
- What benefits might HRT offer for my main symptoms?
- Do I need progestogen, and which route suits my history and preferences?
- What bleeding is expected, and what bleeding should be checked?
- What non-hormonal options are reasonable for me?
- When will we review treatment and how should I seek help sooner?
Frequently asked questions
Do I always need a blood test to diagnose perimenopause?
No. In otherwise healthy people aged 45 or over with typical symptoms and menstrual changes, diagnosis is usually clinical. Testing is useful in selected situations rather than as a routine requirement.
Can HRT be adjusted if the first option does not suit me?
Yes. Dose, formulation, route, or regimen may be reviewed according to response, side effects, bleeding, and personal factors. Discuss changes with the prescriber.
Does HRT provide contraception?
No. HRT is not contraceptive. Contraception needs should be discussed separately during perimenopause.
Make the consultation about your priorities
You do not need to wait until symptoms become unmanageable. A personalised discussion can distinguish likely menopause symptoms from other concerns and compare suitable options. Book a consultation to discuss your health history and goals.
This article is for general education and is not a substitute for individual medical assessment.