Premenopause: What It Is, What to Track and When to See a Clinician
Premenopause is your regular-cycle years before the menopause transition starts. Hormone therapy for menopause is not a premenopause treatment, so this page is about your baseline, the changes that matter and when to get checked. When cycles start to change, the perimenopause guide picks up from here.
Prices checked Education, not medical advice
We earn a commission if you buy through links on this page. It never changes our grades or rankings. How we make money →
Bottom line
- In one line: These are your regular-cycle years before the transition. HRT for menopause usually is not used yet; the useful work now is knowing your baseline.
- HRT is not for this stage: its approved uses are hot flashes, vaginal symptoms and bone loss around and after menopause, plus a few diagnoses of low estrogen (The Menopause Society).
- Track now: the first day of each period, how heavy it is, and any hot flashes, night sweats, sleep or mood changes.
- Get checked for bleeding between periods or after sex, very heavy or longer periods, or periods that stop before 40.
Ages at a glance
NIA, ACOG- Transition usually starts
- Mid-40s (ACOG); most between 45 and 55 (NIA)
- Average age at the last period
- 51 (ACOG); 52 in the US (NIA)
- Menopause confirmed
- After 12 months with no period
- Periods stopping before 40
- See a clinician (primary ovarian insufficiency)
Am I in premenopause?
Probably, if your cycles still come regularly and nothing about them has changed for months.
You might be here if
- Your periods are regular, roughly every 24 to 38 days, with bleeding up to about 8 days (ACOG).
- Your cycle length has not changed by a week or more, again and again. That lasting change is what marks the start of the transition (STRAW+10).
- You are in your 30s or early 40s and notice small shifts. In the late reproductive stage, fertility falls and cycles can begin to change a little (STRAW+10).
What usually happens next
Estrogen from the ovaries can start to rise and fall unevenly in your 30s and 40s (ACOG). Perimenopause usually begins in the mid-40s (ACOG), and most women start the transition between 45 and 55 (NIA). The first clear sign is usually a change in your cycle (ACOG). The average age at the last period is 51 (ACOG), or 52 in the US (NIA).
Want it for your state? Plan Navigator lists the clinics that say they serve it, each priced per month.
What should I track, and when should I get checked?
A simple cycle log turns “something feels different” into dates a clinician can use.
Worth logging each month
- Cycle length: the first day of one period to the first day of the next.
- Flow: lighter, heavier, or with clots.
- Hot flashes and night sweats: how often, how much they bother you, and what seems to set them off (NIA).
- Sleep and mood: trouble falling or staying asleep, irritability or low mood.
Book a visit if
- Bleeding between periods or after sex (ACOG lists both as not normal).
- Very heavy bleeding, or periods that run longer or heavier than usual for you (ACOG), or last more than a week (NIA).
- Periods very close together (NIA).
- Your periods stop before 40, or before 45. The Menopause Society calls menopause before 40 premature and between 40 and 45 early.
The labs your clinician orders before HRT give you a baseline to compare against as you go. You can order your own blood work without a doctor's visit. Where to order your own blood work at cost.
Is HRT ever used before menopause?
Not as a premenopause treatment. The exceptions are diagnoses, not a stage.
What it is approved for
The Menopause Society lists hormone therapy’s FDA-approved uses as bothersome hot flashes and night sweats (vasomotor symptoms), vaginal and urinary symptoms of menopause, preventing bone loss, and low estrogen from hypogonadism, removal of both ovaries or primary ovarian insufficiency. ACOG describes it as a treatment for symptoms of perimenopause and menopause.
It is not a way to get ahead of menopause: The Menopause Society does not recommend it to prevent a decline in memory or thinking, and ACOG says it should not be used only to protect against heart disease.
Primary ovarian insufficiency (POI) means the ovaries stop working normally before 40; unlike menopause, periods and even pregnancy can still happen (NICHD). For POI and premature menopause, The Menopause Society recommends hormone therapy at least until the average age of menopause, about 52, unless there is a reason not to. Removing both ovaries brings symptoms on at once (NIA). A clinician diagnoses these with tests.
Where do I go when the time comes?
To perimenopause first. For cycle or bleeding questions now, a primary-care clinician or ob-gyn is the right start.
For later: online menopause care
When perimenopause symptoms start Paid links · we earn a commission- When perimenopause symptoms startWinona: from $54/mo for estrogen tablets, or from $93/mo with progesterone if you have a uterus (billed every 28 days). #1 of 9 in our women’s HRT ranking; visit, messaging, medication and shipping included.See Winona's plans and prices (paid link, opens in new tab)
Winona serves most states. In AL, AK, AR, KS, LA, MS, NM, ND, RI, SD, UT, VT, WV or DC? Alloy serves your state. In KY or TN? Also available in your state: Alloy.
Questions
Common questions
10 answersIs premenopause the same as perimenopause?
No. Premenopause is the stretch of regular cycles before the transition. Perimenopause starts when your cycle length begins to vary by 7 days or more from one cycle to the next, again and again, and it ends 12 months after your final period (STRAW+10).
Can I start HRT now to get ahead of menopause?
It is not used that way. Its approved uses are symptoms and bone loss around and after menopause. The Menopause Society does not recommend it to prevent memory decline, and ACOG says it should not be used only to protect against heart disease.
What counts as a normal cycle?
ACOG gives 24 to 38 days from the start of one period to the start of the next, with bleeding usually lasting up to 8 days.
Which changes mean I should book a visit?
Bleeding between periods, bleeding after sex, very heavy bleeding, or periods that run longer or heavier than usual for you (ACOG). NIA adds periods that come very close together or last more than a week.
I am 38, my periods are regular and I get hot flashes. Is this perimenopause?
It can be: estrogen can start to fluctuate in your 30s (ACOG). Hot flashes and night sweats can also have other causes, such as an overactive thyroid, sleep apnea or some medicines (The Menopause Society), so get them checked rather than assume.
Should I test my hormones to see where I am?
Usually not. NIH’s NICHD says blood tests are not required to diagnose menopause, and NIA says a test is mainly suggested in cases like periods stopping early. The Menopause Society calls saliva and urine hormone tests unreliable for dosing.
What if my periods stop before 40?
See a clinician. Primary ovarian insufficiency means the ovaries stop working normally before 40, and periods and pregnancy can still happen (NICHD). The Menopause Society recommends hormone therapy at least until the average age of menopause, about 52, unless there is a reason not to.
Can surgery bring menopause on early?
Yes. Removing both ovaries ends periods, and without hormones, menopause symptoms can start right away (NIA). The Menopause Society lists low estrogen after removal of both ovaries among hormone therapy’s FDA-approved uses.
Is there anything to do now for bone and heart health later?
ACOG’s list is calcium and vitamin D, weight-bearing exercise such as walking, strength training, balance work, and a yearly checkup. A little bone loss after 35 is normal, and it speeds up in the first years after menopause.
Do supplements “balance hormones” before menopause?
No guideline we read recommends them. The Menopause Society does not recommend supplements or herbal remedies for hot flashes, and ACOG notes that these products are not regulated for what they contain.
Regulatory status
Education only. A licensed clinician decides whether any treatment here suits you, after reviewing your history.
Sources
Sources cited on this page
13 sourcesClinical lines paraphrase the sources below, read Oct 19, 2026; PubMed IDs checked that day. Winona’s prices come from its own pages, checked Oct 19, 2026.
- 1Winonabywinona.com/product (opens in new tab)bywinona.com/faq (opens in new tab)bywinona.com (opens in new tab)
- 2STRAW+10: staging reproductive aging, executive summary, Menopause 2012 (PMID 22343510) (opens in new tab)pubmed.ncbi.nlm.nih.gov
- 3The Menopause Society (NAMS): 2022 hormone therapy position statement, Menopause 2022 (PMID 35797481) (opens in new tab)pubmed.ncbi.nlm.nih.gov
- 4The Menopause Society (NAMS): 2023 nonhormone therapy position statement, Menopause 2023 (PMID 37252752) (opens in new tab)pubmed.ncbi.nlm.nih.gov
- 5NIH National Institute on Aging: What is menopause? (opens in new tab)nia.nih.gov
- 6NIH National Institute on Aging: Hot flashes, what can I do? (opens in new tab)nia.nih.gov
- 7NIH NICHD: How do healthcare providers diagnose menopause? (opens in new tab)nichd.nih.gov
- 8NIH NICHD: What is primary ovarian insufficiency (POI)? (opens in new tab)nichd.nih.gov
- 9ACOG: The menopause years (FAQ047) (opens in new tab)acog.org
- 10ACOG: Perimenopausal bleeding and bleeding after menopause (opens in new tab)acog.org
- 11ACOG: Hormone therapy for menopause (opens in new tab)acog.org