"When Should I Get a DEXA Scan?" The answer might surprise you!

Why midlife is the most important window to understand your bone density — and how data, lifestyle, and the right support can protect you for decades to come.

Most women don't think about their bones until something breaks. Or until they are "older" which is a vague place in the future. But here is the thing - by the time a fracture happens, bone loss has usually been quietly underway for ten, fifteen, even twenty years — starting as early as the late thirties and accelerating sharply around menopause.

None of this sounds good. So what is the good news? Fractures in later life are not inevitable. And the earlier you have data, the more power you have to change the trajectory. Time to plan an early DEXA for yourself!

What happens to bone density in midlife

Bone is living tissue — constantly being broken down and rebuilt. Estrogen plays a central role in that rebuilding process. As estrogen levels decline during perimenopause and menopause, bone resorption outpaces formation. Women can lose up to 20% of their bone density in the five to seven years following menopause. That loss is largely invisible. There are no symptoms, no pain, no warning signs — until a fracture occurs.

Osteoporosis affects roughly one in two women over the age of 50. Hip fractures, one of the most serious consequences, carry a mortality rate within a year that rivals many cancers. This is not a minor quality-of-life issue. It is a major health risk — and one that is largely preventable when caught early.

Why a DEXA scan is the scan every midlife woman needs

A DEXA (dual-energy X-ray absorptiometry) scan is the gold standard for measuring bone mineral density. It is fast (under 15 minutes), painless, and uses a fraction of the radiation of a standard chest X-ray. (Let's also remember that the amount or radiation in a chest x-ray is also quite tiny!) A DEXA scan measures bone density at your hip and spine — the two sites most vulnerable to osteoporotic fracture — and produces a T-score that tells you exactly where you stand.

That number is power. It tells you whether your bones are in the normal range, whether you have low bone mass (osteopenia), or whether osteoporosis is already present. From there, you and your clinician can make informed, targeted decisions about treatment and prevention — rather than guessing or waiting for a fracture to declare the problem.

So the big quiestion - when should you get one? The guidelines recommend routine screening at age 65. Here at Luna we feel that the guideline age of 65 is NOT the best time to measure your bone density. Earlier is better.

Many clinicians are now advising women to establish a baseline in their early-to-mid forties. This is often somewhere in perimenopause for the average woman, and before significant bone loss has occurred. Getting scanned at perimenopause gives you a reference point to track change over time. If you have risk factors — family history of osteoporosis, low body weight, a history of fractures, long-term steroid use, or a family history of early menopause — earlier screening is especially important.

FUN FACT: Inusrance will pay for a DEXA at age 65. Insurance will also pay for a DEXA early if you have qualifying medical diagnoses (these include low estradiol, low vitamin D, and more!).

HRT and bone health: an important piece of the puzzle

Hormone replacement therapy (HRT) is one of the most effective tools available for protecting bone density during and after menopause. By restoring estrogen levels, HRT directly slows the accelerated bone loss that drives osteoporosis risk. Bioidentical progesterone helps to rebuild bone.

Studies consistently show that women who use HRT during the menopausal transition have significantly higher bone density and lower fracture rates. HRT can decrease your fracture risk by up to 50%!

If you are already taking HRT or considering it, know that bone protection is one of its well-documented benefits — in addition to managing symptoms like hot flashes, sleep disruption, and mood changes. A DEXA scan can help you and your doctor assess whether HRT is contributing meaningfully to your bone health over time.

That said, HRT is not the whole picture — and it is not the right choice for every woman. Which brings us to what matters just as much.

Diet, exercise, and lifestyle: the non-negotiables

You cannot Estrogen-patch yourself out of a poor lifestyle, sub-par diet, or lack of exercise. No medication or hormone replaces the foundational work that diet, movement, and lifestyle choices do for bone health. These are the levers every woman has access to, regardless of whether HRT is part of her plan.

Calcium and vitamin D are essential. Calcium is the primary mineral in bone; vitamin D is what allows the body to absorb and use it. Most women in midlife are not getting enough of either through diet alone. Aim for around 1,200mg of calcium per day from food and supplements combined, alongside sufficient vitamin D — ideally confirmed through blood testing, since deficiency is extremely common.

Resistance training and weight-bearing exercise are the most powerful non-pharmaceutical interventions for building and maintaining bone density. Activities like strength training, hiking, dancing, and even brisk walking stimulate bone formation. Aim for at least two to three sessions of resistance training per week. Yoga and balance work are also valuable — not for bone building, but for fall prevention, which is just as important.

Reduce the risk factors within your control: smoking accelerates bone loss significantly; excessive alcohol impairs calcium absorption; chronic stress elevates cortisol, which suppresses bone formation. Adequate protein intake — often underestimated in women's nutrition — is also critical for maintaining the collagen matrix that gives bone its flexibility.

Knowledge is where it starts

The most important thing you can do for your long-term bone health is to stop waiting for symptoms and start asking questions. A DEXA scan gives you a concrete, objective picture of where your bones are today — and from that data, you can build a plan that is specific to you, not a one-size-fits-all guideline.

Women who understand their numbers are women who act. They adjust their nutrition, commit to strength training, have informed conversations with their clinicians about HRT, and monitor their progress over time. That is not just bone health — that is a fundamentally different relationship with your body and your future.

A fracture at 70 is not inevitable. It is, in many cases, the consequence of choices that were never made at 45 — not out of negligence, but out of a lack of information. You now have the information. The next step is yours.

Ready to know your numbers? Book a DEXA. starts

Insurance will pay at age 65, but most women in midlife will qualify WELL before age 65 due to age related estrogen loss (that is an approved reason), low viatmin D, and a few other medical details you can discuss with your provider.

Still dont qualify for insurance coverage? Don't despair. A DEXA can ususally be scheduled and performed with NO insurance for $80-$120 out of pocket.