The short answer: the menopause transition is the single fastest period of bone loss in a woman’s life, because estrogen (oestrogen), which protects bone, falls sharply. What you do in the years right around and after your final period has a measurable effect on your fracture risk decades later, and the window when action helps most is now, during perimenopause, not after a fracture. The protective steps are well established and mostly accessible: weight-bearing and strength exercise, enough calcium and vitamin D, not smoking, moderating alcohol, and, for many women, hormone therapy, which both preserves bone and reduces fractures. This is not alarmism; it is one of the few midlife health issues where early action reliably pays off.<\/p>\n
Bone loss is the quietest of the menopause changes, which is precisely what makes it dangerous. It causes no symptoms until something breaks, so it is easy to ignore during the years it is happening fastest. Osteoporosis, the condition of weak, fracture-prone bones it can lead to, is sometimes called a “silent disease” for this reason. According to the US National Institute of Arthritis and Musculoskeletal and Skin Diseases, women can lose up to 20 percent of their bone density in the five to seven years after menopause. That is a striking figure, and it is the whole reason to think about bones before there is any sign of a problem.<\/p>\n
Bone is not the inert scaffolding it looks like; it is living tissue in constant renewal. Two types of cell run this process: osteoclasts, which break down and remove old bone, and osteoblasts, which build new bone. In a healthy young adult these are balanced, so bone is continuously replaced without net loss. Estrogen is the primary regulator of that balance in women, and its main job is to restrain the osteoclasts, keeping the breakdown of bone in check.<\/p>\n
When estrogen declines through menopause, that brake comes off. The osteoclasts become more active, bone is broken down faster than it can be rebuilt, and net bone density falls. The rate of loss is steepest in the first few years around and after the final period, then slows to a more gradual age-related decline. This timing is the single most important thing to understand, because it tells you when intervention has the greatest effect: the perimenopausal and early postmenopausal years are the window where protecting bone changes the trajectory most.<\/p>\n
Everyone loses bone at menopause, but some women lose more, or start from a lower peak, and are at higher risk of osteoporosis and fracture. The major risk factors include early menopause or premature ovarian insufficiency (before 40), because it means more years without estrogen’s protection; low body weight or a small frame; smoking; heavy alcohol use; a family history of osteoporosis or a parental hip fracture; long-term steroid (corticosteroid) use; certain medical conditions such as coeliac disease, rheumatoid arthritis and overactive thyroid; and chronically low calcium and vitamin D. A previous fragility fracture, one from a minor fall, is itself an important warning sign.<\/p>\n
These factors compound, so having several matters more than having one. If they apply to you, it is worth a specific conversation with your doctor about your bones rather than waiting. The standard assessment is a DEXA scan (a dual-energy X-ray bone density scan), a quick, low-radiation test that gives a baseline and helps decide whether treatment is needed. Tools such as FRAX, which estimates your ten-year fracture risk from your risk factors, are also used to guide decisions. Our guide to getting the most from a doctor’s appointment<\/a> can help you raise it.<\/p>\n Weight-bearing and resistance exercise<\/strong> is among the most evidence-supported non-drug ways to protect bone. Bone responds to load by building itself, so activities that make you work against gravity or resistance, walking, jogging, dancing, stair-climbing, and especially strength training, stimulate bone formation and slow loss. There is an important bonus: the same exercise builds muscle, strength and balance, which reduces the risk of the falls that turn weak bones into broken ones. Our guide to exercise in perimenopause<\/a> covers how to build a routine, and swimming and cycling, while excellent for fitness, do not load bone the way these do.<\/p>\n Calcium and vitamin D<\/strong> are the raw materials and the delivery system. Most guidelines suggest women over 50 aim for roughly 1,000 to 1,200mg of calcium a day, ideally from food, dairy, fortified plant milks, tinned fish with soft bones such as sardines, tofu set with calcium, and leafy greens, because food sources are better tolerated and safer than high-dose supplements. Vitamin D is needed to absorb that calcium, and is hard to get from food, so many health bodies advise a supplement through autumn and winter or year-round for those with limited sun exposure. Our nutrition framework<\/a> and honest guide to supplements<\/a> put this in context. Adequate protein and stopping smoking and moderating alcohol round out the foundations.<\/p>\n Hormone therapy<\/strong> is one of the well-established benefits of HRT beyond symptom relief: taken during the transition, estrogen preserves bone density and reduces the risk of fractures, including hip and spine fractures. For women who are also managing symptoms like hot flashes, this bone protection is a meaningful part of the overall picture, and for those with early menopause it is particularly important. Whether it suits you is an individual decision, informed by our explainers on what HRT involves<\/a> and what the current evidence says about its safety<\/a>.<\/p>\n If a DEXA scan shows osteoporosis, or you have already had a fragility fracture, the conversation moves beyond prevention to treatment, and there are effective, well-studied medicines. Bisphosphonates are the most common first-line drugs; they slow bone breakdown and reduce fracture risk, and are usually taken as a weekly or monthly tablet or a periodic infusion. For higher-risk cases there are other options, including denosumab (an injection) and bone-building agents that actively stimulate new bone formation.<\/p>\n The point is not that these replace the lifestyle foundations, they work alongside them, but that a low bone-density result is not a dead end. It is a treatable finding, and treatment meaningfully reduces the chance of the fractures that most threaten independence in later life, particularly hip fractures. This is why getting a baseline and knowing your numbers matters: it turns an invisible process into something you and your doctor can actually act on.<\/p>\n During perimenopause, not after menopause. The fastest bone loss begins in the years around the final period, so the most valuable time to build protective habits and have the conversation with your doctor is before bone loss is significant. Because bone loss is silent, waiting for a symptom means waiting for a fracture, so proactive timing genuinely matters here.<\/p>\n If you have risk factors, an early or premature menopause, or are otherwise concerned, it is worth discussing with your doctor. A DEXA scan is quick and low-radiation, gives you a baseline, and helps determine whether treatment is needed. Not every woman needs one routinely, but risk factors lower the threshold, and tools like FRAX help decide.<\/p>\n Yes. Weight-bearing and resistance exercise directly stimulate bone to build itself, and slow the rate of loss. Just as importantly, building strength and balance reduces the risk of falls, which are what turn weak bones into fractures. It is one of the most effective and accessible interventions available, and it benefits muscle, metabolism and mood at the same time.<\/p>\n Most guidelines suggest around 1,000 to 1,200mg of calcium daily for women over 50, from food and supplements combined. Dietary sources such as dairy, fortified plant milks, tinned fish with bones and leafy greens are preferred, because very high-dose supplements are less well tolerated and offer no extra benefit. Calcium also needs adequate vitamin D to be absorbed.<\/p>\n Yes. It is one of the well-established benefits of HRT: taken during the transition, it preserves bone density and reduces fracture risk, including at the hip and spine. This bone protection is worth including in the discussion with your doctor, especially if you have an early menopause or other risk factors, alongside its effect on symptoms.<\/p>\n To a degree. Lifestyle measures and hormone therapy mainly slow further loss and preserve what you have, while certain prescription bone-building medications can actively increase bone density in people with osteoporosis. The realistic goal for most women is to protect and maintain bone and prevent fractures, which is achievable, rather than fully restoring the density of youth.<\/p>\n This article is for general information and does not constitute medical advice. Bone health and fracture risk vary between individuals, and treatment decisions should be individualised. For a bone density assessment or if you have risk factors, please consult a qualified healthcare professional.<\/em><\/p>\nWhat protects bone during the transition<\/h2>\n
When bone loss is already advanced<\/h2>\n
Frequently Asked Questions<\/h2>\n
When should I start worrying about bone health?<\/h3>\n
Should I get a bone density (DEXA) scan?<\/h3>\n
Does exercise really make a difference to bone density?<\/h3>\n
How much calcium do I need?<\/h3>\n
Does hormone therapy help with bones?<\/h3>\n
Can I rebuild bone I have already lost?<\/h3>\n
Further Reading<\/h2>\n
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