Perimenopause and menopause

Menopause Body Changes: What Happens and How to Adapt

The short answer

Menopause shifts body composition, bone, skin, sleep, heart and pelvic health as estrogen falls. In the SWAN study, the rate of fat gain doubled and lean muscle began to decline at the start of the transition, continuing until about two years after the final period, even though overall weight gain did not speed up.

Why does your body change during menopause?

Estrogen does far more than run the menstrual cycle. It acts on bone, muscle, fat tissue, skin, blood vessels, the brain, the bladder and vaginal tissue. When ovarian estrogen falls, first erratically in perimenopause and then to a steady low level after the final period, all of these tissues adjust. Progesterone falls too, and testosterone declines gradually with age.

Most of these changes start in perimenopause, often in your mid-40s, and many are fastest in the few years on either side of the final period. That timing matters: it is also when the habits you build have the most leverage. Here is what changes, system by system, and what helps.

Body composition: why your shape changes

Many women notice their waist thickening or their clothes fitting differently even when the scale barely moves. The SWAN study, which measured body composition with DEXA scans over many years, explains why. At the start of the menopause transition, the rate of fat gain doubled and lean mass (mostly muscle) started to decline. Both trends continued until about two years after the final period, then leveled off. Total weight, however, did not climb faster than before (Greendale et al., 2019).

By the numbers

Body composition through the transition

2×faster fat gain once the menopause transition startsSource: Greendale 2019
~2 yrsafter the final period, fat gain and muscle loss level offSource: Greendale 2019

In other words, the transition changes what your weight is made of more than how much you weigh. Fat also tends to shift from the hips and thighs toward the abdomen, including the deeper visceral fat linked to insulin resistance and heart disease. Less muscle also means burning slightly fewer calories at rest.

What helps

  • Strength training two to three times a week, progressively challenging, to protect muscle.
  • Protein at every meal to support muscle maintenance.
  • Fewer ultra-processed foods and less alcohol, which add calories without much nutrition.
  • Sleep: short sleep is linked to increased appetite and weight gain.

For a deeper look at the scale, see menopause weight gain.

Bones: the silent change

Estrogen slows the cells that break down bone. When it falls, breakdown outpaces rebuilding. In SWAN, bone loss began about a year before the final period and was fastest over the next few years, before slowing (Greendale et al., 2012). There are no symptoms until a fracture happens, which is why osteoporosis is called a silent disease (NIAMS).

What helps

  • Weight-bearing and resistance exercise, such as brisk walking, stair climbing, dancing and lifting.
  • Calcium: women over 50 need about 1,200 mg a day, ideally mostly from food (NIH Office of Dietary Supplements).
  • Vitamin D from diet, sunlight or a supplement if you are low.
  • Not smoking and limiting alcohol, both of which weaken bone.
  • Screening: the U.S. Preventive Services Task Force recommends bone density screening for all women 65 and older and for younger postmenopausal women at increased fracture risk (USPSTF).

By the numbers

Protecting your bones

~1,200 mgcalcium a day for women over 50, ideally mostly from foodSource: NIH ODS
65+age when bone density screening is recommended for all womenSource: USPSTF

Joints and muscles

Aching, stiff joints, especially in the hands, knees and hips and especially in the morning, are a common complaint around menopause. Falling estrogen may play a role, along with changes in weight and activity and ordinary wear and tear. Gentle strength work, regular movement and maintaining a healthy weight often help. New swelling, redness, warmth or pain that keeps getting worse should be checked for arthritis or another cause.

Skin, hair and nails

Estrogen helps maintain skin collagen, thickness and moisture, and research reviews describe skin collagen falling after menopause, with drier, thinner skin that bruises and heals more slowly (Shah and Maibach, 2001). Hair often becomes thinner overall, and some women notice more facial hair as the balance between estrogen and androgens shifts. Nails can become more brittle.

  • Use a gentle cleanser and a good moisturizer, and wear sunscreen daily; sun exposure is a major driver of skin aging at any age.
  • Ask about a topical retinoid if wrinkles or texture bother you.
  • If hair loss is sudden or heavy, get checked for thyroid problems, low iron and other causes.

More in our guide to hair loss during menopause.

Sleep and energy

Sleep problems become more common through the transition (Kravitz et al., 2008). Night sweats, early waking, anxiety and, after menopause, a higher risk of sleep apnea all play a part. Poor sleep then makes fatigue, weight management, mood and concentration harder. A cool bedroom, a consistent wake time, less evening alcohol and cognitive behavioral therapy for insomnia help many women. Loud snoring, gasping at night or daytime sleepiness despite enough time in bed are reasons to ask about a sleep apnea test.

Vaginal, bladder and sexual health

Vaginal and urinary tissues depend heavily on estrogen. As levels fall, many women develop dryness, burning, pain with sex, urinary urgency or more frequent urinary tract infections, a group of symptoms called genitourinary syndrome of menopause. Unlike hot flashes, these tend to get worse over time without treatment. Moisturizers, lubricants and low-dose vaginal estrogen are effective, and pelvic floor physical therapy helps with leaking and pain (2020 GSM position statement).

Heart and metabolism

Before menopause, women have lower rates of heart disease than men of the same age; after it, the gap narrows. LDL cholesterol often rises, blood pressure can creep up, and the shift toward abdominal fat affects blood sugar. None of this is inevitable, but it is a good reason to keep up with checks.

CheckWhy it matters after menopause
Blood pressureTends to rise with age and after menopause
Cholesterol panelLDL often increases as estrogen falls
Blood sugar (A1c or fasting glucose)Abdominal fat gain raises diabetes risk
Waist measurementA simple at-home marker of abdominal fat
Bone density (DEXA)Starting at 65, or earlier with risk factors

Brain and mood

Many women notice brain fog, word-finding trouble and lower stress tolerance during the transition. These changes are real, usually modest and, for most women, temporary; see menopause brain fog. Mood swings and anxiety are common too, and the risk of depression rises during perimenopause. Low mood lasting two weeks or more deserves attention, and if you have thoughts of harming yourself, call or text 988 in the U.S.

Where does hormone therapy fit?

Hormone therapy is the most effective treatment for hot flashes and night sweats and it prevents bone loss. For healthy women under 60 or within 10 years of menopause with bothersome symptoms, The Menopause Society considers the benefits generally greater than the risks (2022 hormone therapy position statement). It is not a weight-loss treatment, it does not replace exercise and nutrition, and it isn't right for everyone; a history of breast cancer, blood clots, stroke or heart disease may rule it out. Women with a uterus need progesterone alongside estrogen.

FDA-approved estradiol patches, gels and pills with FDA-approved progesterone are available through primary care and gynecology. Amie offers Amie HRT+, a compounded cream combining estradiol and progesterone, with the strength chosen by a licensed clinician for symptoms like hot flashes, night sweats and poor sleep. It is not FDA-approved, and a clinician decides whether it is appropriate for you.

The bottom line

Medically reviewed by

Dr. Jessica Russell, MD

Obstetrician-gynecologist · Reviewed October 12, 2026

NPI 1447397583 · verify

Common questions

Why does my body shape change during menopause?

As estrogen falls, fat storage shifts from the hips and thighs toward the abdomen, and muscle mass declines. In SWAN, fat gain sped up and lean mass fell during the transition, even when total weight stayed on its usual course.

Is menopause weight gain inevitable?

A shift in where you carry fat is common, but large weight gain is not inevitable. Strength training, enough protein, good sleep and limiting alcohol help preserve muscle and limit abdominal fat.

Why do my joints ache during menopause?

Joint aches and stiffness are commonly reported around menopause and may relate to falling estrogen, along with weight changes and aging. Persistent swelling, redness or pain in specific joints should be checked for arthritis or other causes.

When should I get a bone density scan?

The U.S. Preventive Services Task Force recommends screening for all women 65 and older, and for younger postmenopausal women with risk factors such as early menopause, low body weight, smoking, steroid use or a parent with a hip fracture.

Can hormone therapy prevent menopause body changes?

Hormone therapy prevents bone loss and treats hot flashes and vaginal dryness, but it is not a weight-loss treatment and doesn't stop aging. Whether it is right for you depends on your symptoms and health history, which a licensed clinician should review.

Sources

  1. Greendale GA et al. Changes in body composition and weight during the menopause transition. JCI Insight 2019
  2. Greendale GA et al. Bone mineral density loss in relation to the final menstrual period (SWAN). J Bone Miner Res 2012
  3. U.S. Preventive Services Task Force. Osteoporosis to Prevent Fractures: Screening
  4. NIAMS. Osteoporosis
  5. NIH Office of Dietary Supplements. Calcium fact sheet for consumers
  6. Shah MG, Maibach HI. Estrogen and skin: an overview. Am J Clin Dermatol 2001
  7. Kravitz HM et al. Sleep disturbance during the menopausal transition in a multi-ethnic community sample of women. Sleep 2008
  8. The 2020 genitourinary syndrome of menopause position statement of The North American Menopause Society. Menopause 2020
  9. The 2022 hormone therapy position statement of The North American Menopause Society. Menopause 2022

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