Menopause: Your Most Common Questions Answered

Originally written by ZRT Laboratory author. Reproduced with permission. Last reviewed: May 2026.

Menopause is one of the most significant transitions in a woman’s life — yet it remains surrounded by confusion, misinformation, and unnecessary silence. Women deserve clear, honest, evidence-based answers to the questions they have about their bodies and their health during this transition.

Below, our clinical team addresses the most commonly asked questions about menopause, from its definition and timing to its wide-ranging symptoms and the role of hormone testing in guiding effective treatment.

What Is Menopause and When Does It Occur?

Menopause is defined as the natural absence of menstrual periods for twelve consecutive months in a woman over the age of 40. The average age of menopause is 51, with the most common range falling between 46 and 56. Elevated FSH (follicle-stimulating hormone) levels on a blood test may help confirm menopause but do not define it — the clinical definition remains based on the absence of periods.

If periods stop before age 40, this is classified as either surgical menopause (following removal of the ovaries) or primary ovarian insufficiency (POI), also called premature ovarian failure. POI tends to run in families and may have contributions from autoimmune conditions, chemotherapy or radiation, viral infections, or genetic and chromosomal disorders.

What Is Perimenopause?

Perimenopause is the transitional phase leading up to menopause, during which the ovaries gradually produce less oestrogen and progesterone. The average duration of perimenopause is four years, though it can last as little as a few months or as long as ten years. Perimenopause ends once a woman has gone twelve consecutive months without a period, at which point she is considered postmenopausal.

During perimenopause, hormonal fluctuations can be dramatic and unpredictable — oestrogen may surge and fall erratically, progesterone declines as ovulation becomes less consistent, and FSH and LH rise progressively as the brain attempts to stimulate the ageing ovaries. This hormonal volatility is responsible for many of the most disruptive perimenopausal symptoms.

What Are the First Signs of Menopause?

Early signs of the transition to menopause include irregular menstrual cycles, hot flushes, night sweats, insomnia, forgetfulness, tearfulness, irritability, anxiety, acne, migraines, weight gain, vaginal dryness, and changes in sexual function. Not all women experience all symptoms, and their severity varies considerably between individuals.

Because these symptoms overlap with many other conditions — including thyroid dysfunction, adrenal imbalance, and depression — comprehensive hormone testing is important for accurate diagnosis and targeted treatment. Our Advanced Female Wellness Test measures oestrogen, progesterone, testosterone, DHEA, cortisol, and thyroid markers with a specialist doctor’s report — providing the clinical detail needed to distinguish between these overlapping conditions.

Does Menopause Cause Depression or Anxiety?

Depression and anxiety during menopause are common and have a clear hormonal basis. Oestrogen acts as a neuromodulator, contributing to mood stability by increasing serotonin synthesis, acting as a monoamine oxidase (MAO) inhibitor, and sensitising serotonin receptors. Its decline during menopause can therefore directly contribute to or worsen mood disorders.

Progesterone’s metabolite allopregnanolone acts as a neurosteroid, binding to GABA receptors in the brain and supporting inhibitory (calming) neural processes. As progesterone declines, this calming effect is reduced, disrupting the excitatory-inhibitory balance and contributing to anxiety, irritability, and sleep disturbance.

Oestrogen and progesterone also modulate dopamine signalling, affecting motivation, reward, and emotional resilience. Anxiety is a particularly common early feature of menopause and may occur independently of hot flushes — making it easy to miss as a hormonal symptom, especially when other menopause signs are not yet present.

Can You Get Pregnant During Perimenopause?

Yes. While fertility declines significantly during perimenopause, pregnancy remains possible until menopause is confirmed — defined as twelve consecutive months without a period. Research suggests that over 75% of women aged 45 to 50 are at risk of unplanned pregnancy due to low contraceptive use, despite clinical guidelines recommending contraceptive protection until age 55 for women at risk. After a full year without a period and/or a follicular FSH above 13, pregnancy becomes very unlikely.

Does Menopause Cause Weight Gain?

Weight gain during menopause is common and has multiple hormonal drivers. Declining oestrogen, reduced muscle mass, decreased physical activity, impaired sleep quality, and worsening insulin sensitivity all contribute to gradual weight gain and a shift in fat distribution from the hips and thighs to the abdominal area. Elevated cortisol from stress and disrupted sleep compounds these changes.

This shift in body composition is associated with increased risk of metabolic syndrome, type 2 diabetes, and cardiovascular disease. Unintentional weight loss during menopause, by contrast, is unusual and warrants medical investigation. Most menopause-related weight changes are modifiable, but effective management typically requires different strategies than those that worked before menopause — including attention to hormonal balance, sleep, stress, and dietary timing.

Does Menopause Cause Fatigue?

While menopause itself may not directly cause fatigue, the associated hormonal changes frequently do. Disrupted sleep from night sweats, declining serotonin, and dysregulation of inflammatory mediators including IL-1β, IL-8, TNF, and IL-20 can all contribute to persistent tiredness. Heavy or irregular perimenopausal bleeding can also lead to iron deficiency anaemia — a common and often overlooked cause of fatigue in this age group. Haemoglobin and ferritin should be checked in any perimenopausal woman presenting with significant fatigue.

What Causes Painful Intercourse After Menopause?

Vaginal atrophy — the thinning and drying of vaginal tissue resulting from reduced oestrogen production — is one of the most common and undertreated consequences of menopause. The thinner vaginal mucosa provides less lubrication, loses elasticity, and becomes more fragile, leading to painful or difficult intercourse and sometimes light bleeding. Without treatment, this condition typically worsens over time and significantly impacts libido and sexual wellbeing.

Treatment options include vaginal lubricants, moisturisers, vitamin E suppositories, and local vaginal hormones such as estriol or DHEA. Even women using systemic HRT may require additional vaginal hormone application for adequate relief.

Is Vaginal Discharge Common After Menopause?

Atrophic vaginitis — characterised by burning, itching, and discharge resulting from vaginal thinning and dryness — is common after menopause. The discharge tends to be thin, watery, yellowish, or grey. Changes to vaginal pH and the vaginal microbiome caused by declining oestrogen also predispose to bacterial vaginosis, which typically presents with a characteristic fishy odour.

Is Bleeding After Menopause Normal?

Any bleeding that occurs after twelve consecutive months without a period requires prompt medical investigation to rule out endometrial cancer or hyperplasia. While postmenopausal bleeding can have benign causes — including new hormone replacement therapy, hormonal contraceptives, or vaginal atrophy — it should never be assumed to be normal without appropriate clinical assessment.

Can Menopause Cause Hair Loss?

Yes. At menopause, oestradiol and progesterone decline significantly while testosterone levels remain relatively stable or may even increase due to rising LH. During the reproductive years, oestradiol suppresses bioavailable testosterone by increasing SHBG, and progesterone competitively inhibits the conversion of testosterone to dihydrotestosterone (DHT) — a potent androgen that binds receptors in the scalp and hair follicles, causing scalp hair thinning and increased facial or body hair growth.

As oestrogen and progesterone decline, DHT becomes relatively more dominant, which can manifest as androgenic alopecia (female pattern hair loss) and unwanted facial hair. Testosterone and DHT levels may be further elevated by the sustained high LH levels characteristic of menopause.

Why Does Menopause Cause Skin Itching?

Oestrogen plays an important role in skin health, moisture, and barrier function at the receptor level. It also influences the microbiome of the skin, gut, and mouth. Microbiome changes related to menopause may increase intestinal permeability, raising the likelihood of food intolerances and atopic dermatitis. Combined with vaginal dryness, sweating from hot flushes, and hormonal changes affecting histamine regulation, skin itching is a common and underappreciated menopausal symptom.

Can Menopause Cause Hives?

Chronic urticaria (hives) is approximately twice as common in women as in men and is associated with hormonal fluctuations including those of the menstrual cycle, pregnancy, menopause, and hormonal therapies. Sex hormones appear to modulate immune and inflammatory cell function, including mast cell secretion of histamine. Research also suggests that women with chronic urticaria tend to have lower levels of DHEA-S — an adrenal hormone that declines with age. Elevated cortisol and adrenaline from stress, which is commonly heightened during menopause, are also frequently associated with hives.

Can Menopause Cause Acne?

Yes. Acne can flare during perimenopause and menopause for the same reason it occurs during puberty: hormonal fluctuations. Rising LH levels during the menopausal transition can increase testosterone production, and as oestrogen and progesterone decline, testosterone and DHT become relatively more dominant. This androgenic shift can manifest as acne, particularly along the jawline and chin, as well as increased body or facial hair.

Can Menopause Cause Dry Mouth?

Oestrogen and progesterone receptors are found throughout the body, including in the oral mucosa. As these hormone levels decline, moisture loss can occur not only in the skin and vaginal tissue but also in the mouth and eyes. Declining oestrogen also alters the oral microbiome, and changes in salivary composition and flow may contribute to gingivitis, periodontitis, and oral candidiasis (thrush) in menopausal women.

Can Menopause Cause Headaches?

Yes. Headaches and migraines can be triggered by both declining and elevated oestrogen levels, or by an imbalance between oestrogen and progesterone. The dramatic hormonal fluctuations of perimenopause — and the vasodilating and vasoconstricting effects of these hormones on cerebral blood vessels — can significantly increase headache frequency and severity. Many women who experienced menstrual migraines find that perimenopausal hormonal volatility worsens them before they eventually improve in postmenopause.

Can Menopause Cause Dizziness or Bloating?

Dizziness during menopause is commonly reported and may be related to middle ear changes, fatigue, or hot flushes. However, many other causes of dizziness exist and should be discussed with a GP to rule out non-hormonal causes.

Digestive symptoms including bloating and nausea may be related to gut microbiome changes, fluid retention, or the loss of progesterone’s effect on gastrointestinal motility. If these symptoms are persistent or severe, they should be investigated to exclude other causes.

Can Menopause Cause Hypothyroidism?

Menopause and hypothyroidism share several symptoms — including fatigue, weight gain, elevated blood lipids, dry skin, and hair loss — which is why comprehensive hormone testing is essential to determine whether a woman is experiencing one or both conditions. Oestrogen has both direct and indirect effects on thyroid gland function and thyroid hormone metabolism, and also modulates autoimmunity. Since Hashimoto’s thyroiditis is the leading cause of hypothyroidism and autoimmune conditions are more common in women, the menopausal transition can be a trigger for thyroid dysfunction in susceptible individuals.

Our Complete Hormone & Thyroid Test Kit measures a full panel of reproductive hormones alongside comprehensive thyroid markers — making it straightforward to distinguish between menopausal and thyroid-driven symptoms and guide appropriate treatment for each.

How Can Hormone Testing Help During Menopause?

Many of the symptoms described in this article — from mood changes and fatigue to hair loss, weight gain, and skin changes — have overlapping causes that cannot be reliably distinguished on the basis of symptoms alone. Comprehensive hormone testing provides the objective data needed to identify which hormones are out of balance, to what degree, and how they are interacting with one another.

Working with a knowledgeable healthcare provider and a reliable laboratory is one of the most effective ways to navigate menopause with confidence. Testing before starting any hormone therapy establishes a baseline; testing during treatment allows for dose optimisation and safety monitoring.

Our Comprehensive Female Saliva Hormone Profile measures eight key hormones using LCMS-validated saliva analysis — providing a detailed, clinically meaningful picture of oestrogen, progesterone, testosterone, DHEA, and cortisol status that can guide personalised menopause management.

Originally written by ZRT Laboratory author. Reproduced with permission. Last reviewed: May 2026.