Perimenopause vs menopause: what is the difference?
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.
Evidence:Strong evidence
Although people often say "going through menopause" to describe several years of changing periods and symptoms, medical guidelines distinguish clearly between perimenopause, menopause, and postmenopause.
Side-by-side comparison (STRAW+10 & NICE NG23)
| Stage | How clinical criteria define it | What happens with periods |
|---|---|---|
| Early perimenopause (STRAW+10 Stage −2) | Begins when consecutive cycle lengths vary by 7 days or more (recurring within 10 cycles) | Periods still happen, often shifting shorter or longer |
| Late perimenopause (STRAW+10 Stage −1) | Intervals of 60 days or more without a period; lasts 1 to 3 years on average | Skipped periods for 2 to 11 months; vasomotor symptoms often peak |
| Menopause | Confirmed retrospectively after 12 consecutive months without a period (when not using hormonal contraception) | Periods have stopped permanently |
| Postmenopause (STRAW+10 Stage +1/+2) | All the years following that 12-month mark | No menstrual bleeding; any bleeding or spotting needs a doctor's check |
How to check where your pattern fits
- Use our interactive STRAW+10 perimenopause stage guide to see how clinical guidelines interpret your cycle pattern and age.
- If your periods have stopped, enter your last period date in our private 12-month counter.
- Review evidence-graded options for symptoms in our Does It Work? evidence directory.
When to get help now
Where are you right now?
Still tracking
Not sure if your symptoms fit? Start tracking your daily patterns.
Log and spot your patterns with the symptom checklist →Ready to talk to a doctor
Have an upcoming appointment? Bring structured questions and your history.
Prepare your 10-minute doctor appointment questions →Already on treatment
Evaluating your response or wondering what to adjust next?
Explore evidence-graded treatment and lifestyle options →Questions people ask
Is perimenopause the same as menopause?
No. Perimenopause is the multi-year transition when hormone levels fluctuate and cycles shift. Menopause is the milestone reached once you have gone 12 consecutive months with no menstrual period.
Can I get hot flashes in perimenopause while I still have periods?
Yes. Hot flashes and night sweats frequently begin during the early or late menopausal transition while periods are still happening or skipping.
Related pages
References
- Harlow SD, Gass M, Hall JE et al.. Executive summary of the Stages of Reproductive Aging Workshop + 10: addressing the unfinished agenda of staging reproductive aging. Fertility and Sterility (published jointly in several journals), 2012.
- Menopause: identification and management (NG23), Recommendations. National Institute for Health and Care Excellence (UK), 2026.
- Postmenopausal bleeding. NHS (nhs.uk), 2026.
Change log
- : Published comparison guide on perimenopause vs menopause