Perimenopause is the transition, menopause is a single moment, and postmenopause is everything after. Perimenopause is the run-up of months to years when hormones swing and periods become irregular. Menopause is the point when you have gone 12 months without a period. Postmenopause is the rest of your life from that point. People often use "menopause" loosely for all three, which is why the terms get confusing.
This guide sets out the menopause stages side by side: what happens to your hormones, periods, fertility and symptoms at each stage, how each is diagnosed, and what care makes sense when.
The menopause stages at a glance
| Perimenopause | Menopause | Postmenopause | |
|---|---|---|---|
| What it is | The transition before periods stop | Your final period, confirmed after 12 months without one | The years after menopause |
| Typical age in India | Often starts around 40 to 44 | Average about 46 | From the mid to late 40s onwards |
| Periods | Irregular: shorter, longer, heavier, lighter or skipped | Stopped for 12 months | None. Any bleeding needs checking |
| Hormones | Oestrogen and progesterone swing up and down | Oestrogen has fallen to a low level | Oestrogen stays low; levels settle |
| Pregnancy | Still possible; contraception needed | Very unlikely, but contraception advice depends on age | Not possible naturally |
| Common symptoms | Cycle changes, sleep and mood changes, hot flashes | Hot flashes often at their peak around this time | Hot flashes ease over years; vaginal, bladder, bone and heart changes matter more |
| How it is diagnosed | Symptoms and cycle pattern, usually without tests over 45 | Looking back, after 12 months without a period | Follows from menopause |
The Indian age figures come from a PAN-India survey by the Indian Menopause Society (Ahuja, 2016), which found an average age at natural menopause of 46.2 years. The NHS describes menopause as usually happening between 45 and 55.
Stage 1: Perimenopause
"Peri" means "around". This is the stage when your ovaries start to work less steadily. Ovulation becomes irregular, and oestrogen and progesterone do not fall smoothly. They swing, sometimes higher than before and sometimes very low. That is why perimenopause symptoms can come and go and feel unpredictable.
The most common signs are changes in your cycle, poor sleep, anxiety or irritability, worse premenstrual symptoms, and hot flashes or night sweats. You can still get pregnant, so contraception is still needed if you do not want a pregnancy.
The UK's NICE guideline says that women over 45 with recent hot flashes or night sweats and changes in their cycle can be diagnosed with perimenopause without blood tests. NuHer's perimenopause care focuses on this stage.
Stage 2: Menopause
Menopause is one day, not a phase: the date of your final menstrual period. Because you cannot know a period is your last at the time, menopause is confirmed only after 12 months without a period, with no other cause such as pregnancy or hormonal contraception.
In practice, people say "I am going through menopause" to describe the year or two around this point, when hot flashes, night sweats and sleep problems are often at their most intense. Our menopause care page covers treatment at this time.
If you are unsure whether you are close, see our article on signs perimenopause is ending.
Stage 3: Postmenopause
From the day after menopause, you are postmenopausal for the rest of your life. Oestrogen stays at a lower level. Many symptoms, such as hot flashes and mood swings, gradually ease, although for some women hot flashes continue for several years.
Other changes become more important:
- Bone: bone loss speeds up in the years around menopause, raising the risk of osteoporosis
- Heart and metabolism: cholesterol, blood pressure and blood sugar tend to rise
- Vagina and bladder: dryness, discomfort during sex, urgency and urine infections, often called genitourinary syndrome of menopause, tend to get worse without treatment
Any vaginal bleeding in postmenopause should be checked by a doctor promptly. Our post-menopause care page covers long-term bone, heart and intimate health.
The detailed menopause stages doctors use
For research and clinical decisions, specialists use a more detailed system called STRAW+10 (Stages of Reproductive Aging Workshop, updated in 2012). It splits the years around menopause into finer stages, mainly by your bleeding pattern:
- Late reproductive stage: periods still regular but subtle changes in flow or cycle length begin
- Early menopausal transition: cycle length varies by seven days or more from one cycle to the next
- Late menopausal transition: gaps of 60 days or more between periods; usually lasts about one to three years
- Final menstrual period: the menopause itself
- Early postmenopause: the first several years after menopause, when hormone levels are still settling and hot flashes are most likely to continue
- Late postmenopause: the remaining years, when changes in vaginal and bladder tissue become more prominent
Our perimenopause guide has a table showing how long each of these stages usually lasts. The simple three-stage model is enough for most women; the finer stages help doctors decide, for example, which type of HRT suits you.
Other terms you may hear
Premenopause
Premenopause usually means the reproductive years before perimenopause starts, when periods are regular. Some people use it to mean perimenopause, which adds to the confusion. If a doctor uses the word, it is fine to ask which they mean.
Early menopause and premature ovarian insufficiency
Menopause between 40 and 45 is called early menopause. When the ovaries stop working normally before 40, it is called premature ovarian insufficiency (POI). Both mean more years without oestrogen, which affects bone and heart health, so doctors usually recommend hormone treatment at least until the usual age of menopause unless there is a reason not to.
Surgical and induced menopause
Removing both ovaries causes immediate menopause, often with sudden, strong symptoms. Chemotherapy and pelvic radiotherapy can also bring on menopause. After a hysterectomy where the ovaries are kept, periods stop, but you are not in menopause until the ovaries wind down naturally. Diagnosis then depends on symptoms.
Perimenopause vs menopause: treatment at each stage
Treatment is chosen around your symptoms and health, but the stage matters for some decisions:
- In perimenopause, if you still have a womb, HRT is usually given as a cyclical regimen with a planned monthly bleed. Some women use a hormonal coil, which helps heavy bleeding, provides contraception and protects the womb lining alongside oestrogen.
- After menopause, many women can move to continuous HRT without bleeds.
- At any stage, lifestyle changes, cognitive behavioural therapy and non-hormonal medicines are options, and vaginal oestrogen can treat dryness and bladder symptoms.
HRT is the most effective treatment for hot flashes and night sweats, and it helps protect bone. For most healthy women under 60 or within ten years of menopause, the benefits usually outweigh the risks. It is not suitable for everyone, including some women with a history of breast cancer, blood clots, stroke or liver disease, so it is prescribed only after a doctor reviews your history. Our page on oestrogen in menopause explains what this hormone does at each stage.
When to see a doctor
- Your periods change or stop before 45, or before 40 at any time
- Bleeding is very heavy, very frequent, or happens between periods or after sex
- Any bleeding after 12 months without a period
- Symptoms are affecting your sleep, work, relationships or mood
- You feel persistently low or have thoughts of harming yourself. Please seek help straight away
Questions women ask
What is the difference between perimenopause and menopause?
Perimenopause is the transition, lasting months to years, when hormones fluctuate and periods become irregular. Menopause is a single point: your final period, confirmed once you have gone 12 months without one. Most symptoms start in perimenopause, not at menopause itself.
How many stages of menopause are there?
Most people describe three: perimenopause, menopause and postmenopause. Doctors sometimes use the more detailed STRAW+10 system, which divides the transition and postmenopause into early and late stages based on your bleeding pattern.
Which is worse, perimenopause or menopause?
It varies. Many women find the late perimenopause and the first year or two after their final period the hardest, because hot flashes, night sweats and sleep problems tend to peak then. Unpredictable bleeding and mood swings are more typical of perimenopause.
Can I be in menopause and still have periods?
No. By definition, menopause means 12 months without a period. If you still have periods, even irregular ones, you are in perimenopause. If you bleed after 12 months without a period, see a doctor promptly.
Do I need a test to know which stage I am in?
Usually not if you are over 45. Your cycle pattern and symptoms are the best guide. Under 45, or if you use hormonal contraception or have had a hysterectomy, a doctor may suggest blood tests to help.
Not sure which stage you are in? Take our free menopause test, track your cycle with the symptom tracker, or book a consultation with a NuHer doctor in person at Nariman Point, Mumbai, or by video from anywhere in India.
