Periods Became Irregular at 43 and Stopped at 46: Is That Early Menopause? Hot Flashes, Insomnia, Aches, Constipation, Dry Skin, and Protecting Bone and Heart After Menopause

A real story from a women’s health group: “Did anyone else stop at 43 like me?”

One member shared that at 43 her periods became irregular: three months in a row, then three months without, one more period, then five months without.
Along the way she had insomnia, body aches, heat intolerance, irritability, frequent constipation, and dry skin. She is now 47 and has had no period for a year.

Short answer: this is very common, and by medical definition it is not early menopause.
The irregular cycles at 43 were the menopause transition (perimenopause); menopause itself is dated from the final period, which in this story was probably around 46.
Her symptoms fit hormonal change, but some — constipation, aches, and dry skin — can have other causes too, so it is worth asking her own doctor to sort them out.
We do not know her test results, so this article explains general guidance to discuss with a doctor.

1. Timeline 43 → 47: when is it the transition, and when is it menopause?

Short answer: menopause is diagnosed in hindsight, after 12 consecutive months without a period and no other cause such as pregnancy, hysterectomy, or medication.
The earlier phase of irregular cycles is the menopause transition, in the STRAW+10 staging system
(Harlow 2012).

At what age is it called “early”?

Sources: about 10% of women reach natural menopause before 45
(Muka 2016) ·
median age at final period 52.54 years in 1,483 US women
(Gold 2013) ·
hormone advice for early menopause
(Faubion 2015)
— several studies in Asian women report a slightly lower average age.

2. Heat, insomnia, aches, irritability, constipation, dry skin: which symptoms are hormonal?

Short answer: hot flashes, night sweats, and vaginal dryness are the most clearly hormonal.
Insomnia, mood, aches, constipation, and dry skin are shaped by hormones together with age, sleep, stress, and other conditions.

For many women, hot flashes do not end in 1–2 years

These figures come from SWAN, a multi-ethnic cohort
(Avis 2015).
Women whose symptoms start while cycles are first turning irregular — like the story above — tend to have them longer than average.
Stress, anxiety, and depressive symptoms at onset were also linked with longer duration.
Being told “it will pass in a year or two” can leave many women suffering longer than they need to.

Symptoms and possible mechanisms

Sources: hot flash mechanism and non-hormone treatment
(NAMS 2023) ·
musculoskeletal syndrome of menopause
(Wright 2024) ·
genitourinary syndrome of menopause (GSM)
(NAMS 2020) ·
perimenopausal depression
(Maki 2019)

3. After menopause: why bone and heart matter

Short answer: the earlier menopause comes, the longer the body goes without estrogen, so osteoporosis and heart disease risk rise.
A final period at 46 is not “early”, but some studies use a cut-off of 47, so it is worth paying attention now.

A Swedish study that followed 390 women for 34 years found that menopause before 47 was linked with higher risk of osteoporosis, fracture, and death
(Svejme 2012).
A meta-analysis found 1.50 times the risk of coronary heart disease and 1.19 times the risk of cardiovascular death with menopause before 45
(Muka 2016).
These are population associations, not a prediction for any individual, but they show why screening is worthwhile.

What to discuss with your doctor at 47

• Heart and blood vessels: blood pressure, cholesterol, blood sugar or HbA1c, waist size, and smoking
• Bone: fracture risk assessment and when to have a DXA bone density scan, especially if you are thin, smoke, take steroids, or a parent broke a hip
  (NIAMS)
• Thyroid: if you have tiredness, constipation, dry skin, or weight change, which can mimic menopause
• Cancer: keep up cervical and breast screening on schedule

4. Care options: what works, and what helps only a little

Short answer: menopausal hormone therapy (MHT) is the most effective treatment for hot flashes, and for healthy women under 60 or within 10 years of menopause the benefits usually outweigh the risks
(NAMS 2022).
For women who cannot or prefer not to use hormones, there are evidence-based non-hormone options
(NAMS 2023).
This table compares drug classes, generic names, natural options, and lifestyle measures.

SKYLIGHT 1 randomized 527 women aged 40–65 with seven or more moderate-to-severe hot flashes a day; fezolinetant reduced frequency more than placebo from the first week, and the effect held to 52 weeks
(Lederman 2023).
Isoflavone extracts reduced hot flash frequency by 20.6% and severity by 26.2% versus placebo, but studies varied widely
(Taku 2012).

5. Symptom-targeted self-care: constipation, dry skin, aches, insomnia

Constipation

Start with about 25 grams of fiber a day (vegetables, fruit with skin, whole grains, beans), enough fluids, a walk after meals, and a regular toilet time after breakfast.
If that is not enough, magnesium oxide is an osmotic laxative with randomized trial data: 70.6% responders versus 25.0% on placebo (a small trial)
(Mori 2019).
People with kidney disease or on many medicines should ask a doctor first because magnesium can build up; evidence that magnesium improves sleep is weak
(NIDDK — Constipation).

Dry skin

Moisturize right after bathing, use warm rather than hot water and a gentle cleanser, and wear sunscreen daily.
A meta-analysis of 19 trials (1,125 people) found that hydrolyzed collagen improved skin hydration and elasticity
(de Miranda 2021),
but most trials were small and many were industry-funded, so treat it as optional rather than core care. Dry skin with tiredness and constipation warrants a thyroid test.

Aches and bone

Resistance training 2–3 days a week plus brisk walking helps muscle, joints, and bone.
In the LIFTMOR trial of 101 postmenopausal women with low bone mass, supervised high-intensity resistance training raised lumbar spine bone density by 2.9% while the comparison group lost 1.2%
(Watson 2018).
Eat enough protein at each meal, get calcium mainly from food, and check vitamin D if your doctor advises.
Evidence for omega-3 for joint pain in this phase is unclear.

Insomnia and mood

Cognitive behavioral therapy for insomnia (CBT-I) is the recommended first treatment: wake at the same time daily, get out of bed if you cannot sleep for 20 minutes, and limit daytime naps.
A cool bedroom and breathable clothing reduce waking from night sweats.
If irritability or sadness affects work or family, ask to be assessed for depression, which responds to both therapy and medication.

6. Preparing for your gynecology visit

• Period timeline: months with and without periods, and the date of your final period
• Your top 3 symptoms: for example, hot flashes per day and night-time awakenings
• History that affects treatment choice: breast cancer, blood clots, migraine with aura, liver or heart disease, and family history
• All medicines and supplements: including herbal and “menopause support” products
• Your goal: fewer hot flashes, better sleep, bone protection, or avoiding hormones — this helps your doctor choose well

Scientific mechanism: estrogen, the body’s thermostat, bone, and blood vessels

By Asst. Prof. Dr. Norawit Raatpiboon:
as ovarian follicles run down, ovulation becomes irregular and estrogen swings before settling permanently low.
Estrogen normally restrains KNDy neurons in the hypothalamus; when it falls, these cells release more neurokinin B.
The temperature-control center becomes oversensitive, the body wrongly senses overheating, and it triggers skin blood-vessel dilation and sweating — which is why neurokinin 3 receptor antagonists reduce hot flashes.
In bone, estrogen slows bone-resorbing cells; without it, breakdown outpaces formation, so bone mass falls fastest in the first few years after menopause.
In blood vessels, estrogen supports vessel-wall function and lipid levels, so a longer time without estrogen is linked with higher heart risk.
That is why care after menopause has to look beyond hot flashes.

Frequently asked questions (FAQ)

Is a final period at age 46 early menopause?

No. Menopause is dated from the final menstrual period once 12 consecutive months have passed without one, and the usual age range is about 45 to 55. Menopause before 45 is called early menopause and affects roughly 1 in 10 women; before 40 it is called premature ovarian insufficiency. Cycles turning irregular at 43 are the menopause transition, which often starts several years before periods stop.

Do hot flashes really stop within 1–2 years?

For many women, no. In the SWAN study of 1,449 women with frequent symptoms, hot flashes lasted a median of 7.4 years and continued for about 4.5 years after the final period. Women whose symptoms began early in the transition had the longest duration, more than 11.8 years. Knowing this helps you decide on treatment instead of waiting for symptoms to pass.

Is hormone therapy safe at 47?

For healthy women under 60 or within 10 years of menopause, the 2022 North American Menopause Society position statement concludes that benefits usually outweigh risks when hormone therapy is used for hot flashes and to prevent bone loss. It is the most effective treatment for hot flashes, but it is not suitable after breast cancer, blood clots, stroke, or unexplained vaginal bleeding. Women who still have a uterus need a progestogen as well. A doctor should assess you before starting.

What works if I do not want hormones?

The 2023 guidance recommends cognitive behavioral therapy, clinical hypnosis, low-dose SSRIs or SNRIs, gabapentin, oxybutynin, and neurokinin 3 receptor antagonists such as fezolinetant, which in the SKYLIGHT 1 trial reduced moderate-to-severe hot flashes by about 2.4 to 2.6 more per day than placebo at 12 weeks. All of these need a prescription and monitoring for side effects.

Do soy milk or isoflavones help hot flashes?

Slightly, for some women. A meta-analysis found that isoflavone extracts reduced hot flash frequency by about 20 percent compared with placebo, but results varied widely between studies, and the 2023 guidance does not recommend soy or isoflavones as treatment. Eating soy foods is fine, but they should not replace more effective treatment if symptoms disrupt daily life.

Is frequent constipation after menopause caused by hormones?

Possibly in part, but evidence that falling estrogen directly causes constipation is unclear. More common causes are age, low fiber and fluid intake, less movement, medicines such as iron or calcium, and conditions like an underactive thyroid. Start with about 25 grams of fiber a day, enough fluids, and daily walking. If that is not enough, magnesium oxide helped in a randomized trial, but people with kidney disease should ask a doctor first, and blood in the stool, weight loss, or new constipation after 45 should prompt a colon check.

What health checks should I add after menopause?

Check blood pressure, cholesterol, and blood sugar, because heart risk rises after menopause. Ask your doctor when to have a DXA bone density scan, especially if menopause came before 47, you are thin, smoke, take steroids, or a parent broke a hip. Keep up cervical and breast cancer screening, and test thyroid function if symptoms fit.

My periods stopped a year ago but I am bleeding again. What should I do?

See a gynecologist promptly, even for a single light episode, and do not assume your period has returned. A meta-analysis of 129 studies found that about 9 percent of women with postmenopausal bleeding had endometrial cancer, and about 91 percent of women with this cancer had bleeding first. Most causes are benign, but you need an ultrasound or biopsy as your doctor advises.

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