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This article gathers information from the references listed at the end. It is not medical advice, and it does not replace a conversation with your doctor.
In this article
Perimenopause, menopause, postmenopause. The words sound alike and are often used as if they meant the same thing, which leaves many women unsure about what they are going through. The good news is that it all makes sense once you look at it as a timeline.
Menopause is a day, not a stage
By the medical definition, menopause is your final menstrual period. Since you can only be sure it was the last one by looking back, it is confirmed after 12 months in a row without a period, with no other explanation such as pregnancy, breastfeeding or medication.
According to the World Health Organization, this happens for most women between 45 and 55. In many countries the average is around 51.
So when someone says "I'm in menopause", they usually mean a period of time, but technically menopause is a single point on the calendar. What comes before and after has other names.
Perimenopause: the transition that starts earlier
Perimenopause, also called the menopause transition, is when the ovaries gradually produce fewer hormones, but unevenly, with highs and lows. It is not a gentle slope. It is a roller coaster.
- It usually begins in your 40s, sometimes a little earlier.
- It can last from a short time to several years, and the length varies a lot from woman to woman.
- Periods continue, but they may change: shorter or longer cycles, heavier or lighter flow, months that are skipped.
This is when many women notice the first signs without connecting the dots: poor sleep, waking at 3 a.m., irritability, crying easily, tiredness, hot flashes, trouble concentrating, lower desire. Because periods are still coming, the question "could this be menopause?" often never comes up.
Much of what changes now happens on its own, inside the body. It is not a lack of willpower, and it is not your fault.
Postmenopause: what comes after
After those 12 months without a period, postmenopause begins, and it lasts for the rest of your life. Hormones settle at a lower level and the body adapts.
Some symptoms ease with time, but not for everyone and not all at once. A large US study (SWAN), which followed more than 1,400 women, found a median duration of about 7 years for hot flashes and night sweats, counted from when they began during the transition.
Postmenopause also brings changes you cannot feel, such as bone loss and a higher cardiovascular risk. That is why this stage deserves attention even when you feel well.
The timeline, simply
| Stage | What happens | Usually when |
|---|---|---|
| Perimenopause | Hormones swing, cycles change, first symptoms | Your 40s, for a few years |
| Menopause | Final period (confirmed after 12 months) | Between 45 and 55 |
| Postmenopause | Hormones settle at a lower level | From then on |
What women tell us
Personal experiences, shared to help you feel less alone. They are not health advice.
I am afraid they will continue getting worse. I don't know what I should do.
I give hope to myself that these will be temporary and over and I will feel well again.
I need advice and information so that I can undergo this period more easily and without further injury to my body.
Why understanding this helps
Knowing which stage you are in changes the conversation, both with yourself and with your doctor. It helps you put a name to what you feel, see that you are not alone and ask better questions at your appointment.
A gynecologist we spoke with for this project told us that the complaints she hears are almost identical in women from every social background. The difference is often who has access to information and care. Ella Plena exists to help close that gap.
When to see a doctor
It is worth booking an appointment if:
- you have bleeding after 12 months without a period. This always needs to be checked;
- your periods have become very heavy, very long, or come with large clots;
- your symptoms started before age 45;
- symptoms are affecting your sleep, work, relationship or mood.
Questions that can help at the appointment: "Could my symptoms be perimenopause?", "What options exist for me, with and without hormones?", "Which screenings should I have at this stage?"
References
- World Health Organization. Menopause (fact sheet), 2024. who.int
- NHS. Menopause. nhs.uk
- NICE. Menopause: identification and management (NG23). nice.org.uk
- Harlow SD et al. Executive summary of the Stages of Reproductive Aging Workshop + 10 (STRAW+10). Menopause. 2012;19(4):387–395.
- Avis NE et al. Duration of menopausal vasomotor symptoms over the menopause transition. JAMA Internal Medicine. 2015;175(4):531–539.
- Refaei M et al. Women's experiences in the transition to menopause: a qualitative research. BMC Women's Health. 2022;22:53. doi.org/10.1186/s12905-022-01633-0 (CC BY 4.0)
Frequently asked questions
Can I be in perimenopause if I still get a period every month?
Yes. During perimenopause periods continue, but they may change in rhythm, length or flow. Symptoms such as poor sleep, irritability and hot flashes can appear before any cycle is skipped.
Is there a blood test that confirms menopause?
For most women over 45, the diagnosis is based on symptoms and the pattern of periods. Hormones swing a lot during this stage, so a single test can be misleading. Guidelines such as the UK's NICE guidance do not recommend routine tests in this age group. A doctor may order tests in specific situations, such as symptoms before 45.
Can I still get pregnant during perimenopause?
Yes. Fertility falls, but it does not disappear while you still ovulate, even irregularly. Talk to your doctor about how long to keep using contraception.
What is early menopause?
Menopause that happens before age 45. Before 40 it is called premature ovarian insufficiency. In both cases it is worth seeing a doctor, because there is specific care to protect bones and heart.
Most relevant for: in your 40sin your 50s
