Perimenopause Symptoms at 43

The transition begins for a growing share of women

By 43 the early menopausal transition is genuinely common, even though most women this age have not started it yet. This is often the age of the confusing appointment: symptoms are real, cycles are borderline, blood tests come back normal, and women leave with nothing. Knowing how the diagnosis actually works at this age changes that conversation.

What periods typically look like at 43

Typical patterns at 43 include cycles drifting shorter over several months, one notably heavy period among normal ones, or the first fully skipped period. Any persistent change of 7 or more days in cycle length is the research definition of the early transition.

The most common symptoms at 43

Cycle changes
shorter, longer, heavier or lighter, the direction matters less than the change itself
Sleep problems
insomnia at 43 is frequently hormonal before it is behavioural
Anxiety and overwhelm
often new, or a sharp amplification of a previous tendency
Hot flashes
beginning for some women, often mild and premenstrual at first
Dizziness or lightheadedness
a less discussed but commonly searched symptom of the transition

What is not typical, and needs a doctor

New dizziness with hearing changes or spinning vertigo should be assessed for inner ear causes. Bleeding between periods or after sex always needs a medical review regardless of age.

Testing and diagnosis at 43

Between 40 and 45, NICE guidance says a doctor may use an FSH blood test to support the picture, alongside your symptoms and cycle history. A single normal result does not rule perimenopause out, because hormone levels swing widely during the transition. Menopause arriving before 45 is classed as early menopause and is worth confirming, since guidelines recommend considering hormone therapy until at least the natural age of menopause to protect bones and heart.

You can still conceive during perimenopause. Pregnancy remains possible until you have gone 12 consecutive months without a period, so contraception still matters at 43 if you do not want to become pregnant. An irregular cycle makes timing unpredictable rather than impossible.

Wondering whether your pattern fits 43?

Log your symptoms and cycle each day in the Menelle app. Over a few weeks it builds the dated record that guidelines say is the best evidence for diagnosing perimenopause, ready to show your doctor.

Common questions at 43

My blood test was normal, can I still be perimenopausal at 43?

Yes. Hormone levels fluctuate so much during the transition that a single normal FSH or estradiol result proves little. NICE guidance treats the symptom and cycle history as the primary evidence between 40 and 45, with blood tests only supporting the picture.

What helps most at this stage?

A dated record of symptoms and cycles, kept for 8 to 12 weeks. It turns a vague appointment into a clear one, and guidelines support treating symptoms that affect quality of life at any point in the transition, not only after periods stop.

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