Fracture Risk During Perimenopause: Understanding and Reducing Your Risk
Perimenopause raises your fracture risk as bone density falls. This guide explains the key risk factors and the most effective prevention strategies.
Why Fracture Risk Rises During Perimenopause
A fracture during perimenopause often comes as a surprise. Women in their 40s do not typically think of themselves as being at risk for broken bones, yet the hormonal changes of perimenopause begin eroding bone density years before the final period. Estrogen suppresses the activity of osteoclasts, the cells responsible for breaking down old bone tissue. As estrogen levels fall during perimenopause, osteoclast activity increases and the balance between bone breakdown and bone formation shifts in the wrong direction. The hip, spine, and wrist are the most vulnerable sites. Vertebral fractures can occur silently, causing progressive height loss and back pain without any dramatic fall. Wrist fractures are often the first clinical sign in perimenopausal women who have not yet had a bone density scan. Hip fractures, though more common in older postmenopausal women, can occur earlier when bone loss has been rapid or severe.
Key Risk Factors You Should Know
Fracture risk is determined by bone strength and fall risk combined. Bone strength factors include low bone mineral density, low body weight (BMI under 19), early or premature menopause before age 45, a previous fragility fracture (one from a low-impact event like a trip on a flat surface), parental history of hip fracture, long-term corticosteroid use, and inflammatory conditions such as rheumatoid arthritis or coeliac disease that impair calcium absorption. Fall risk factors matter just as much because most fractures occur because of a fall. These include poor balance, muscle weakness, reduced vision, dizziness from medications, inner ear problems, and hazards in the home environment. The combination of reduced bone strength and an increased tendency to fall creates a compounding risk. Addressing both sides of the equation gives the greatest protective effect.
The FRAX Tool: Calculating Your 10-Year Risk
The FRAX fracture risk assessment tool was developed by the World Health Organisation to give clinicians and patients a concrete, personalised probability of fracture over the next 10 years. It produces two numbers: the probability of any major osteoporotic fracture (hip, spine, forearm, or humerus) and the probability of hip fracture specifically. FRAX incorporates age, sex, BMI, DEXA T-score (if available), smoking status, alcohol intake, glucocorticoid use, rheumatoid arthritis, prior fractures, and parental hip fracture history. The tool is available free online at sheffield.ac.uk/FRAX. Your doctor will use your FRAX score to decide whether lifestyle intervention alone is sufficient or whether medication is warranted. A 10-year major fracture probability above 10 to 20 percent is generally considered a threshold for treatment in UK guidance, though thresholds vary by country and individual context.
Lifestyle Measures That Cut Fracture Risk
Exercise is the most powerful lifestyle intervention for fracture prevention because it simultaneously builds bone density and reduces fall risk by improving balance, muscle strength, and reaction time. Impact exercise such as jogging, skipping, stair climbing, and dance creates bone-strengthening mechanical forces. Resistance training builds the muscle mass that absorbs impact during a fall. Tai chi has strong evidence for fall prevention specifically, reducing fall rates by 20 to 45 percent in older adults, and is worth considering for women with balance concerns. Calcium and vitamin D are essential structural supports. Calcium from food or supplements should reach 1,000 to 1,200 mg daily. Vitamin D should be checked by blood test, and supplementation of 800 to 2,000 IU daily is typical for women deficient or at risk. Stopping smoking is important as smoking impairs bone formation and blood supply to bone. Reducing alcohol below 14 units per week removes a direct depressant effect on osteoblast activity.
Fall Prevention as Part of Fracture Prevention
Reducing the chance of a fall matters as much as building strong bones. A simple home assessment can identify hazards: loose rugs, inadequate lighting on stairs, cluttered hallways, and slippery bath or shower surfaces. Non-slip mats, grab rails, and good lighting are low-cost adjustments with real impact. Footwear matters too. Heeled shoes with thin soles reduce proprioceptive feedback and increase the chance of ankle rolling. Supportive, flat, well-fitting shoes are preferable for everyday use. Vision should be checked annually as uncorrected refractive error and conditions like cataracts significantly increase fall risk. If you take medications that cause dizziness, drowsiness, or postural hypotension, review them with your GP. Some older antihistamines, sleeping tablets, and blood pressure medications are particularly associated with falls. Asking for a medication review is a straightforward step that many women overlook.
Medical Treatment Options for High-Risk Women
For women whose FRAX score or bone density puts them at significant fracture risk, medication offers substantial protection. Bisphosphonates (alendronate, risedronate, zoledronic acid) are the most commonly used first-line treatments and reduce vertebral fracture risk by around 40 to 70 percent in clinical trials. HRT has well-established bone-protective effects and is particularly appropriate for perimenopausal women under 60 who have other menopause symptoms alongside bone concerns. It not only halts accelerated perimenopausal bone loss but addresses hot flashes, sleep disturbance, and mood changes simultaneously. Denosumab is an injectable treatment given every six months, suitable for women who cannot tolerate bisphosphonates. Romosozumab is a newer anabolic treatment for severe osteoporosis that stimulates bone formation. The right choice depends on your fracture risk level, other health conditions, and personal preferences. A fracture liaison service or metabolic bone clinic can provide specialist guidance.
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