How is menopause diagnosed? Symptoms vs blood tests

How is menopause confirmed?

This is not medical advice — it is general information based on what you searched for that may help.

General information based on published sources and the symptoms you searched for. This isn't medical or legal advice, a diagnosis or a treatment plan. Please consult a doctor about your own symptoms. If your symptoms are severe or sudden, seek urgent care.

This page may not apply to you if:

You are under 40: menopause-like symptoms need specific evaluation for premature ovarian insufficiency
You use hormonal contraception or had a hysterectomy: the 12-month period count cannot confirm menopause on its own

For most women aged 45 and over, confirming natural menopause does not require a blood test or ultrasound. Both the international STRAW+10 criteria and UK NICE guideline NG23 confirm natural menopause retrospectively after 12 consecutive months without a menstrual period, provided you are not using hormonal contraception and there is no other medical cause.

You can track that 12-month window privately on your device with our 12-month period-free counter or explore how earlier cycle changes are classified in the STRAW+10 perimenopause stage guide.

Why hormone blood tests are not routinely used at 45 and over

For otherwise healthy people aged 45 or over, NICE NG23 advises identifying menopause from a 12-month absence of periods — or from vasomotor symptoms in people who do not have a uterus — without laboratory tests. At 45 and over, NICE specifically advises clinicians not to use anti-Müllerian hormone (AMH), inhibin A or B, oestradiol, antral follicle count, or ovarian volume to diagnose perimenopause or menopause.

For a closer look at when follicle-stimulating hormone (FSH) testing is considered — such as between ages 40 and 45, or under age 40 when premature ovarian insufficiency is suspected — read Is there a blood test for perimenopause? and check our Does It Work? evidence directory.

Questions to ask your clinician

Given my age and the date of my last period, can we confirm menopause from my history alone?
Since I use a hormonal IUD (or hormonal contraception), how should we assess whether I have passed menopause and when is it safe to stop contraception?
What symptoms or preventive health checks (such as bone density) should we review now that my periods have stopped?

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Questions people ask

Do I need a blood test to confirm menopause at age 50?

Usually not. UK guidance (NICE NG23) advises clinicians to identify natural menopause in otherwise healthy people aged 45 and over once they have gone 12 consecutive months without a period (when not using hormonal contraception), without ordering hormone blood tests.

How do doctors confirm menopause if I had a hysterectomy?

When ovaries were kept during a hysterectomy, periods cannot be used to count 12 months. Clinicians assess your age and vasomotor symptoms (such as hot flashes and night sweats) rather than relying on a single blood test.