Menopause symptoms: the three stages, the 12-month rule, and what treatment looks like now
Most women reach menopause between 45 and 55, but the changes usually start years before the last period. Knowing which stage you are in explains a lot of symptoms that are easy to blame on stress or age.
This article is general information, not medical advice. If you think you need care, contact a health professional.
Three stages, one definition
Menopause is technically a single moment: the point at which periods stop for good because the ovaries no longer release eggs and produce much less oestrogen and progesterone. You only know you have reached it in hindsight. The World Health Organization (WHO) says natural menopause has occurred after 12 consecutive months without a period, when there is no other obvious cause.
| Stage | What it means | Typical timing |
|---|---|---|
| Perimenopause | The transition: cycles change and symptoms often begin. The WHO says it runs from the first signs until one year after the final period. | Can last several years; MedlinePlus says periods may be irregular for 1 to 3 years before they stop |
| Menopause | The final period, confirmed after 12 months without one. | Generally between 45 and 55, worldwide |
| Postmenopause | Everything after that point. | The rest of life; some symptoms continue for years |
Sources: WHO, Menopause fact sheet; MedlinePlus, Menopause.
Some women reach menopause before 40, which the WHO calls premature menopause; causes include chromosomal and autoimmune conditions, and often none is found. Menopause can also be induced: removing both ovaries, or treatments such as chemotherapy, radiation or hormone-blocking therapy for breast cancer, can stop ovarian function. MedlinePlus notes that symptoms of surgical menopause can start more suddenly and be more severe.
It is impossible to predict when an individual woman will reach menopause. And if your periods already stopped for another reason, such as a hysterectomy or a contraceptive that suppresses bleeding, you will not have a "last period" to count from, but you can still go through the other changes of the transition.
The symptoms women report most
The WHO and MedlinePlus list largely the same symptoms. Not everyone has them: some women notice little beyond their periods stopping, while for others symptoms are severe enough to disrupt work, sleep and relationships.
- Changes to periods. Usually the first sign. Cycles can get shorter or longer and flow heavier or lighter; MedlinePlus notes some women have a period every three weeks before they start skipping.
- Hot flushes and night sweats. A sudden feeling of heat in the face, neck and chest, often with flushing, sweating and palpitations, lasting several minutes. MedlinePlus says hot flushes are usually worst in the first one to two years.
- Sleep problems. Insomnia, sometimes driven by night sweats. Our guide to how much sleep women need covers what helps.
- Mood changes. Irritability, low mood, depression and anxiety; some women also report forgetfulness.
- Vaginal and urinary changes. Dryness, pain during sex, vaginal infections and urine leakage.
- Other physical signs. A racing or pounding heart, headaches, joint aches and changes in sexual desire.
MedlinePlus says symptoms may last five years or more. Several of these overlap with other conditions. Heavy, irregular bleeding in perimenopause can drain iron stores, and the tiredness of iron deficiency is easy to mistake for "just the menopause". Palpitations are common in the transition, but chest pain, breathlessness or a racing heart with faintness are not something to wait out: read our guide to heart attack symptoms in women and call emergency services.
You can still get pregnant
Fertility falls during perimenopause, but it does not disappear. The WHO recommends using contraception until you have had 12 consecutive months without a period. The US Food and Drug Administration (FDA) adds a specific warning: do not stop your birth control on the strength of a positive menopause home test kit, because pregnancy may still be possible. The WHO also points out that sexually transmitted infections, including HIV, remain a risk after menopause, and that thinner vaginal tissue can make transmission more likely.
Is there a test?
For most women, the diagnosis rests on age, symptoms and the change in periods. Blood tests can help: MedlinePlus lists oestradiol, follicle-stimulating hormone (FSH) and luteinising hormone (LH). Because hormone levels swing during perimenopause, a provider may need to repeat the tests several times to confirm where you are if you are still having periods. A single at-home result does not settle the question.
What changes in the long term
The drop in oestrogen affects more than periods. The WHO highlights three long-term effects:
- Heart. Women's lower risk of cardiovascular disease compared with men gradually disappears after menopause. Blood pressure and cholesterol become more important to track; see our article on high blood pressure in women.
- Bones. Bone loss speeds up in the first years after the last period, a major reason osteoporosis and fractures become more common. MedlinePlus says a bone density test is recommended for all women at 65, or sooner with a family history or medicines that raise the risk.
- Pelvic floor. The structures that support the pelvic organs can weaken, raising the risk of prolapse.
Treatment: hormone therapy
Menopausal hormone therapy (MHT, often called HRT) replaces some of the oestrogen the ovaries stop making. Women who still have a uterus also take a progestogen, because oestrogen alone raises the risk of cancer of the uterine lining. According to the FDA and MedlinePlus, it can relieve hot flushes, night sweats and vaginal dryness and reduce the chance of osteoporosis.
The advice on HRT has shifted. Its use fell sharply in the early 2000s after results from the Women's Health Initiative study, and the FDA added broad "black box" warnings to the labels. On 10 November 2025 the FDA announced it was starting to remove those warnings about cardiovascular disease, breast cancer and probable dementia, while keeping the endometrial cancer warning for systemic oestrogen-only products. It said the labels would recommend starting systemic HRT within 10 years of menopause onset or before age 60.
That does not make HRT right for everyone. The FDA still lists people who should not take it, including women who may be pregnant or have problems with vaginal bleeding, certain cancers, a past stroke, heart attack or blood clot, or liver disease. MedlinePlus notes that skin patches appear to be safer than pills because they avoid the higher risk of blood clots seen with oral oestrogen, and that vaginal oestrogen is an option for dryness. The decision depends on your age, your time since menopause, your symptoms and your medical and family history: it is a conversation to have with a clinician, not a supplement to pick off a shelf.
Treatment without hormones
For women who cannot or prefer not to take hormones, MedlinePlus lists several prescription options for hot flushes and mood symptoms: some antidepressants (paroxetine, venlafaxine, bupropion and fluoxetine), the blood pressure medicine clonidine, and gabapentin. In November 2025 the FDA also announced the approval of a new non-hormonal medicine for moderate to severe hot flushes.
Everyday measures that MedlinePlus recommends include:
- avoiding caffeine, alcohol and spicy food;
- dressing lightly and in layers;
- slow, deep breathing when a hot flush starts – about six breaths a minute;
- regular exercise, including resistance training for bones and balance, and daily pelvic floor (Kegel) exercises;
- enough calcium and vitamin D, from food or supplements;
- water-based lubricants or vaginal moisturisers for dryness;
- not smoking – MedlinePlus notes that smoking can bring menopause earlier.
Be wary of products sold as natural cures. The FDA's advice is blunt: natural does not always mean safe, and if a claim sounds too good to be true, it probably is. Tell your doctor about any herbs or supplements you take.
When to see a doctor
- Symptoms are interfering with sleep, work or daily life.
- You are spotting between periods.
- Bleeding starts again after 12 months without a period, even a small amount. MedlinePlus says this is often nothing serious but must be checked, because it can be an early sign of cancer.
- Your periods stop before 40.
- You want to discuss contraception, bone health or whether HRT suits you.
A quick checklist
- Menopause is confirmed after 12 months with no period; perimenopause can start years earlier.
- Keep using contraception until those 12 months have passed.
- Track your cycle and symptoms: it makes a medical appointment far more useful.
- Check blood pressure and ask about bone health as you go through the transition.
- HRT is again a mainstream option for many women under 60; discuss your own risks.
- Any bleeding after menopause needs a doctor's visit.
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