💡 What You Need to Know Right Away
A bone density DEXA scan is an imaging test that uses low-dose X-rays to measure the strength of your bones, detect osteoporosis, and assess your risk of fractures in about 15 minutes.
Also known as: DXA scan, dual-energy X-ray absorptiometry, bone densitometry, bone mineral density test, bone mass measurement
- Bone density screening programs reduce hip fractures by about 17%, based on 3 large clinical trials involving over 42,000 people[Evidence: A][12]
- DEXA is the gold standard diagnostic test for osteoporosis, officially recognized by the World Health Organization[Evidence: D][8]
- The USPSTF (2025) recommends bone density screening for all women aged 65 and older, and for postmenopausal women under 65 with risk factors[Evidence: D][11]
- The scan is completely painless, uses less radiation than a chest X-ray, and involves no needles, injections, or enclosed spaces
If you or your doctor are considering a bone density test, you probably have questions. How does it work? Will it hurt? And most importantly, what do the results actually mean?
It is normal to feel anxious about medical tests, especially when the results might reveal something unexpected. Many people worry about what a low bone density score means for their future. The good news is that bone density testing is one of the most straightforward and painless imaging tests available, and the information it provides can help you and your doctor take meaningful steps to protect your bone health.
In this guide, you will learn how a DEXA scan works, who should get one, what to expect during the test, and how to understand your T-score results. Every claim is supported by peer-reviewed research so you can trust the information you are reading.
❓ Quick Answers
What is a DEXA scan used for?
A DEXA scan measures bone mineral density to detect osteoporosis and assess fracture risk. It scans the hip and spine to determine bone strength. DEXA is the gold standard diagnostic test for osteoporosis, recognized by the World Health Organization[Evidence: D][8]. Some facilities also use DEXA for body composition analysis, including body fat and lean muscle measurement.
Does a DEXA scan hurt?
No. A DEXA scan is completely painless. There are no needles, injections, or pressure applied to your body. You simply lie still on an open, flat table while a scanner arm passes quietly over you. The only mild discomfort some people report is brief stiffness from staying still for 10 to 20 minutes during the scan.
How long does a DEXA scan take?
A standard bone density DEXA scan of the hip and spine takes 10 to 20 minutes on the table. Your total time at the facility, including check-in and positioning, is usually 30 to 45 minutes. Full-body composition scans take slightly longer, around 20 to 30 minutes of scanning time.
What is a normal T-score on a DEXA scan?
A T-score of -1.0 or above is considered normal bone density. A score between -1.0 and -2.5 indicates osteopenia, meaning lower-than-normal bone density. A T-score of -2.5 or below means osteoporosis. Your doctor may combine your T-score with a fracture risk calculator to guide treatment decisions[Evidence: D][11].
How do you prepare for a bone density test?
Stop calcium supplements 24 hours before the scan. Wear loose, comfortable clothing without metal zippers, buckles, or underwire bras. Do not take calcium pills or multivitamins the morning of the test. Let the technologist know about any recent contrast dye X-rays or nuclear medicine scans, as these can temporarily interfere with results.
Is a DEXA scan safe?
Yes. A DEXA scan uses very low radiation, roughly equal to a few hours of natural background exposure and significantly less than a standard chest X-ray. The scan involves no injections, no contrast dye, and no enclosed space. The only absolute contraindication is pregnancy, due to the small amount of ionizing radiation involved.
At what age should women get a bone density test?
The US Preventive Services Task Force (USPSTF) recommends bone density screening for all women aged 65 and older[Evidence: D][11]. Postmenopausal women under 65 with risk factors for bone loss, such as low body weight, smoking, or a family history of fractures, should also be screened[Evidence: D][11].
The DEXA
Scan Guide
Understanding your bone health starts with precision. Explore the essentials of Dual-Energy X-ray Absorptiometry—the gold standard for bone density measurement.
🔬 How Does a DEXA Scan Work?
DEXA stands for dual-energy X-ray absorptiometry. The technology works by sending two X-ray beams at different energy levels through your bones. Think of it like shining two different colored flashlights through a window at the same time. Denser bone absorbs more of the X-ray energy, while less dense bone lets more pass through. By measuring the difference between these two energy levels, the machine calculates your bone mineral density with high precision.
The scan focuses on two key areas: the lumbar spine (lower back) and the femoral neck (top of the thigh bone near the hip). These sites are measured because they are the most common locations for osteoporosis-related fractures and provide the most clinically useful information.
Your results are reported as a T-score, which compares your bone density to that of a healthy 30-year-old adult. DEXA measurements are highly precise, with a measurement variation of just 0.5 to 1.5% for the spine and 1.0 to 2.5% for the hip[Evidence: D][8]. This precision means doctors can reliably track even small changes in your bone density over time.
Studies show that DXA T-scores can predict about 2 out of 3 hip fractures in older adults[Evidence: B][1]. When your T-score is combined with the FRAX fracture risk calculator, which factors in age, weight, smoking history, and other risk factors, prediction accuracy improves further[Evidence: D][4]. FRAX has been validated in 26 studies across 9 countries, with an overall accuracy that correctly identifies higher-risk individuals in more than 7 out of 10 comparisons[Evidence: A][6].
An additional measurement called the Trabecular Bone Score (TBS) can be calculated from the same DEXA scan image without any extra testing. TBS assesses the internal texture and microarchitecture of your bone, providing information that standard bone density alone cannot capture. A meta-analysis of nearly 18,000 people across 14 population studies found that for each unit decrease in TBS, the risk of major fractures increases by about 44%[Evidence: A][15]. When TBS is added to FRAX, it correctly reclassifies the risk category for about 1 in 10 to 1 in 4 patients[Evidence: B][10], potentially changing treatment recommendations.
🧪 What to Expect: The Real Patient Experience
During the Scan
You will lie on your back on a firm, padded table. Foam positioning pads are placed under your knees or lower legs to flatten your lower spine against the surface. A scanner arm passes over your body at a distance of about 10 to 15 inches. The arm moves slowly and quietly, producing only a gentle mechanical hum. Many patients describe it as "like a photocopier passing over you."
Unlike an MRI, there is no tunnel and no enclosed space. The DEXA scanner is completely open. If you expected a closed tube, you will likely feel relieved when you see the setup. The imaging room is typically cool, around 65 to 68°F (18 to 20°C), and the scanning table may feel cool through your clothing. No gel or contrast dye is applied. The technologist may ask you to hold your breath briefly, about 5 to 10 seconds, once or twice during the spine portion to reduce motion blur.
What You Will Feel Afterward
There is no recovery time. You can eat, drink, drive, and return to normal activities immediately. No sedation or contrast agent needs to clear from your body. The only physical note some people report is mild positional stiffness after lying still, especially during longer full-body scans. Radiation from the X-rays does not remain in your body after the scan.
The biggest post-scan experience for many people is emotional, not physical. Receiving an unexpected osteopenia or osteoporosis diagnosis can feel jarring. It is completely normal to feel anxious or surprised by the results. If you are worried about this, ask ahead of time how and when you will receive your results so you are not left waiting and wondering.
How to Make It Easier
- For clothing: Wear loose clothes without metal zippers, buckles, or underwire. You may need to change into a gown if metal is present.
- For supplements: Skip calcium supplements for 24 hours before the scan. Calcium pills near bones can slightly affect readings.
- For anxiety about results: Ask your provider before the scan when and how results will be delivered.
- For joint stiffness: If you have arthritis, let the technologist know. They can adjust positioning to keep you comfortable.
- For timing: Arrive 10 minutes early. Positioning takes a few minutes, and rushing can increase the chance of motion blur.
- For medications: Bring a list of your current medications, especially corticosteroids or bone-affecting drugs, as these are clinically relevant for interpreting results.
📊 Who Should Get a DEXA Scan and How Often
The US Preventive Services Task Force (USPSTF) updated its osteoporosis screening guidelines in 2025. These recommendations are based on moderate certainty of moderate net benefit[Evidence: D][11], supported by a systematic evidence review of 3 randomized clinical trials involving over 42,000 participants[Evidence: A][12].
| Patient Group | USPSTF 2025 Recommendation | Risk Factors to Consider | Evidence |
|---|---|---|---|
| Women aged 65 and older | Recommended (Grade B) | Age alone is sufficient indication | [D][11] |
| Postmenopausal women under 65 with risk factors | Recommended (Grade B) | Low body weight, smoking, family history of fractures, prior fracture, corticosteroid use | [D][11] |
| Men | Insufficient evidence for routine screening (Grade I) | Discuss individually: age 70+, long-term steroid use, low body weight, fracture history | [D][11] |
The USPSTF recommends a two-step approach: first estimating fracture risk with a questionnaire like FRAX, then ordering a bone density scan for those who exceed the risk threshold[Evidence: A][12]. This targeted screening strategy led to approximately 5 fewer hip fractures and 6 fewer major fractures per 1,000 people screened[Evidence: A][12].
How Often to Repeat the Scan
Updated international practice guidelines establish monitoring intervals and quality assurance standards for repeat bone density testing[Evidence: D][8]. The appropriate interval between scans depends on your initial results, whether you are on treatment, and your individual risk profile. Your doctor will recommend a personalized monitoring schedule. In general:
- Normal bone density: Follow-up may not be needed for several years.
- Osteopenia: Periodic follow-up to track changes. Your doctor will determine the interval.
- Osteoporosis or on treatment: More frequent monitoring to assess treatment response. Measurement precision at the spine is 0.5 to 1.5%, and at the hip is 1.0 to 2.5%[Evidence: D][8], meaning your doctor can detect a real change of about 2 to 6% at the scanning site.
Why Screening Matters
Screening programs have demonstrated real fracture prevention benefits. A meta-analysis of 3 large clinical trials found that screening reduces hip fractures by about 17% and major osteoporotic fractures by about 6%[Evidence: A][12]. One landmark trial (SCOOP) involving 12,483 women aged 70 to 85 showed a 28% reduction in hip fractures over 5 years in the screening group[Evidence: B][13]. Another long-term trial (ROSE) demonstrated sustained fracture-reduction benefits lasting at least 10 years in women who completed the screening process[Evidence: B][14].
⚠️ Safety, Radiation, and Precautions
A bone density DEXA scan is one of the safest imaging tests available. The scan itself is painless, and the radiation exposure is extremely low, roughly equal to a few hours of natural background radiation and significantly less than a standard chest X-ray. Most people tolerate the scan without any issues.
It is normal to feel anxious about medical tests. Understanding the safety profile ahead of time can help you feel more at ease.
⚠️ Important Safety Information
- Pregnancy: Do not have a DEXA scan if you are or may be pregnant, due to ionizing radiation.
- Recent nuclear medicine: Wait 4 to 7 days after any nuclear medicine injection (e.g., bone scan, thyroid scan) before having a DEXA, as radioactive tracers can interfere with results.
- Recent barium contrast: Wait 7 to 10 days after barium-containing contrast studies (e.g., barium swallow) before your DEXA scan.
- Weight limits: Most DEXA scanner tables accommodate up to 300 to 450 pounds (136 to 204 kg). Confirm with your facility if this may be a concern.
- Staying still: You must be able to lie flat on your back and remain still for the duration of the scan (10 to 20 minutes).
When to Talk to Your Doctor
Contact your healthcare provider if any of the following apply:
- You have experienced a fracture from a minor fall or everyday activity
- You have lost more than 1 to 2 inches of height over time
- You take corticosteroids or other medications known to affect bone density
- You have a family history of osteoporosis or hip fracture
- You have received a DEXA scan result you do not understand
- You have been diagnosed with osteopenia or osteoporosis and want to discuss treatment options
Research confirms that when osteoporosis is identified through DEXA scanning, effective treatments exist. A network meta-analysis of 69 clinical trials involving over 80,000 postmenopausal women found that multiple drug classes significantly reduce fracture risk[Evidence: A][16]. Early identification through screening leads to earlier treatment and better outcomes.
📋 How to Prepare and Understand Your Results
Before Your Scan: Preparation Checklist
- 24 hours before: Stop calcium supplements and calcium-containing antacids.
- Day of: Do not take calcium pills or multivitamins the morning of the test.
- Clothing: Wear loose, comfortable clothing without metal (zippers, buckles, underwire bras, belt buckles). You may need to change into a gown.
- Inform staff about: Recent X-rays with contrast, nuclear medicine scans within the past week, and any joint replacements (hip or knee hardware can affect the scan area).
- Bring: A list of current medications, especially corticosteroids or bone-affecting drugs.
- Arrive: 10 minutes early to allow time for check-in and positioning.
Understanding Your T-Score
Your T-score is the most important number on your DEXA report. It compares your bone density to a healthy 30-year-old adult of the same sex, measured in standard deviations.
| T-Score Range | Classification | What It Means | Typical Next Steps |
|---|---|---|---|
| -1.0 and above | Normal | Your bone density is within the healthy range | Continue healthy habits; routine follow-up as recommended by your doctor |
| -1.0 to -2.5 | Osteopenia | Your bones are weaker than normal but not yet osteoporotic | Lifestyle modifications; possible FRAX assessment; discuss monitoring schedule |
| -2.5 and below | Osteoporosis | Significant bone density loss with higher fracture risk | Discuss treatment with your doctor; medication may be recommended; monitoring scan |
Understanding Your Z-Score
A Z-score compares your bone density to someone of your same age, sex, and body size, rather than a young adult reference. Z-scores are primarily used for premenopausal women, men under 50, and children. A Z-score of -2.0 or lower may indicate that something beyond normal aging is contributing to bone loss, and your doctor may investigate secondary causes such as hormonal imbalances, medication effects, or nutritional deficiencies.
What Your Results Mean for Fracture Risk
Your T-score alone does not tell the whole story. Your doctor may use the FRAX calculator to estimate your 10-year probability of a major fracture by combining your bone density score with other personal risk factors such as age, sex, weight, smoking history, and family fracture history. FRAX has been validated in 26 studies across 9 countries[Evidence: D][4] and correctly identifies higher-risk individuals in more than 7 out of 10 comparisons[Evidence: A][6].
If your results show osteopenia or osteoporosis, do not panic. These findings give you and your doctor the information needed to take action. Lifestyle changes, such as weight-bearing exercise, adequate calcium and vitamin D, and fall prevention, can help protect your bones. If your fracture risk is higher, medication options are available and have been shown to significantly reduce fractures in large clinical trials[Evidence: A][16].
What to Look for When Choosing a DEXA Scan Provider
The quality of your test results depends on the facility, the equipment, and the technologist performing the scan. Here is what to consider:
Quality Markers
- ISCD-certified technologist: Look for technologists certified by the International Society for Clinical Densitometry (ISCD). Why it matters: Proper positioning and technique are critical. Interpretation errors are common but preventable with proper training[Evidence: D][7].
- Standardized reporting: Ask if the facility uses standardized DXA report templates. Why it matters: Standardized reporting significantly reduces major errors in how results are interpreted and communicated[Evidence: D][7].
- Same machine for follow-ups: If you plan to have repeat scans, try to use the same facility and machine each time. Why it matters: Different DXA machines can give slightly different readings. Consistent equipment improves monitoring accuracy.
- Insurance acceptance: Verify in-network status before scheduling. Why it matters: Out-of-network imaging facilities can cost significantly more.
Questions to Ask Your Provider
- Is your DEXA machine calibrated regularly according to manufacturer specifications?
- Are your technologists ISCD-certified?
- Do you use standardized DXA reporting templates?
- When and how will I receive my results?
- Who will explain my results to me?
- Will you include a FRAX score with my report?
Red Flags
- No quality control program: Facilities should perform regular phantom scans to verify machine accuracy.
- Results without context: A good report includes your T-score, Z-score, comparison to prior scans (if available), and a clinical recommendation.
- Pressure to add unnecessary tests: A standard bone density scan of the hip and spine is sufficient for most screenings. Full-body composition scans are not required for osteoporosis assessment.
How DEXA Compares to Other Bone Density Tests
DEXA is not the only test that can assess bones, but it is the recognized gold standard for diagnosing osteoporosis[Evidence: D][8]. If you have heard of other tests like bone scans, CT scans, or ultrasound, it helps to understand what each one measures and when it is appropriate.
| Feature | DEXA Scan | Nuclear Bone Scan | Quantitative CT (QCT) | Heel Ultrasound |
|---|---|---|---|---|
| What It Measures | Bone mineral density (BMD) | Areas of unusual bone activity (metabolism) | Volumetric bone density | Bone quality at peripheral site |
| Primary Use | Osteoporosis diagnosis and fracture risk assessment | Cancer metastases, infection, hidden fractures | Research settings; vertebral density analysis | Pre-screening or when DEXA is unavailable |
| Gold Standard for Osteoporosis? | Yes (WHO-certified)[8] | No (measures metabolism, not density) | No (not standardized for clinical diagnosis) | No (peripheral screening only) |
| Invasiveness | Non-invasive (lie on open table) | Intravenous injection of radioactive tracer | Non-invasive | Non-invasive |
| Radiation Level | Very low (1-10 µSv) | Moderate (higher than DEXA) | Higher than DEXA | None (uses sound waves) |
| Scan Duration | 10-20 minutes | 2-4 hours (including tracer uptake) | 10-15 minutes | 5-10 minutes |
| Availability | Widely available | Widely available | Limited; mainly research centers | Some pharmacies and mobile units |
Key takeaway: A nuclear bone scan and a DEXA scan are different tests that answer different clinical questions. A bone scan looks for areas of unusual bone activity (such as cancer spread or infection), while a DEXA scan measures bone density to diagnose osteoporosis. If your doctor orders one, make sure you understand which test is being requested and why.
Newer technologies are also being developed to enhance standard DEXA. Advanced computer analysis of DEXA images (3D finite element models) has been shown to improve hip fracture prediction accuracy by about 10 percentage points compared to standard bone density scores alone, without requiring any additional imaging[Evidence: B][2].
What The Evidence Shows (And Doesn't Show)
What Research Suggests
- Bone density screening programs reduce hip fractures by about 17 to 20%, based on two independent meta-analyses of 3 large clinical trials (42,009 participants)[Evidence: A][5][12]. The SCOOP trial (12,483 women, 5-year follow-up) showed a 28% relative reduction in hip fractures[Evidence: B][13].
- DXA T-scores can predict about 66 to 71% of hip fractures in older adults[Evidence: B][1], and fracture risk tools using DXA input achieve satisfactory accuracy with AUC greater than 0.70[Evidence: A][6].
- Trabecular Bone Score (TBS), derived from standard DEXA images, independently predicts fractures beyond bone density alone, with a gradient of risk of 1.44 (95% CI 1.35-1.53) per standard deviation decrease (17,809 people, 14 prospective cohorts)[Evidence: A][15].
- When osteoporosis is identified through DEXA, effective treatments exist. A network meta-analysis of 69 RCTs involving over 80,000 postmenopausal women confirms that multiple drug classes significantly reduce fracture risk compared to no treatment[Evidence: A][16].
- The fracture-reduction benefits of bone density screening last at least 10 years for women with moderate-to-high fracture risk[Evidence: B][14].
What's NOT Yet Proven
- Routine screening for men: The USPSTF 2025 found insufficient evidence to recommend population-level bone density screening in men[Evidence: D][11]. No large-scale randomized trials have evaluated screening outcomes specifically in male populations.
- Optimal screening interval: While guidelines establish monitoring standards[Evidence: D][8], the ideal interval between screening scans has not been established through head-to-head comparison trials.
- TBS for treatment monitoring: While TBS improves fracture risk prediction, there is not yet sufficient evidence that TBS can reliably track how well bone-strengthening medications are working[Evidence: D][3].
- Body composition accuracy: Meta-analysis data specifically validating DEXA body composition measurements against reference standards was not available in the reviewed evidence base.
- Cost-effectiveness data: Specific cost-effectiveness analyses from the reviewed screening trials were not included in the current evidence base.
Where Caution Is Needed
- Technical quality varies: Interpretation errors in DXA reporting are common but preventable with standardized protocols and trained technologists[Evidence: D][7]. The quality of your results depends on the facility.
- T-score thresholds miss many fractures: Most osteoporotic fractures actually occur in people with osteopenia (T-scores between -1.0 and -2.5), not in those meeting the osteoporosis threshold. Using FRAX alongside DXA improves identification of at-risk individuals[Evidence: D][4].
- Screening does not prevent all fractures: While screening reduces hip fractures, the overall reduction in all osteoporosis-related fractures is more modest. One large RCT found no significant reduction in total osteoporotic fractures (HR 0.94, p=0.178) despite the hip fracture benefit[Evidence: B][13].
- Endocrine conditions require additional assessment: In people with bone loss from hormonal conditions (such as overactive parathyroid or long-term steroid use), standard BMD alone may underestimate fracture risk. Combining TBS with BMD may improve prediction in these populations[Evidence: C][9].
Should YOU Get a DEXA Scan?
Best suited for: Women aged 65 and older; postmenopausal women under 65 with risk factors for bone loss (low body weight, smoking, family history, prior fracture, corticosteroid use)[Evidence: D][11]. Also appropriate for anyone with a known condition or medication that affects bone health.
Not recommended for: Pregnant women (absolute contraindication). Those who have had recent nuclear medicine or barium contrast studies should wait before scanning. Routine population-level screening in men is not currently supported by evidence.
Realistic timeline: The scan takes 10 to 20 minutes. Results are typically available within a few days. If treatment is recommended, benefits from bone-strengthening medications and lifestyle changes develop over months to years.
When to consult a professional: Before scheduling, discuss with your doctor whether screening is appropriate for your age, sex, and risk profile. After receiving results, review them with your healthcare provider to understand your personal fracture risk and next steps.
Frequently Asked Questions
Does Medicare cover bone density tests?
The USPSTF 2025 gives bone density screening a Grade B recommendation for women 65 and older and for at-risk postmenopausal women under 65 . Under the Affordable Care Act, preventive services with a USPSTF Grade A or B recommendation are typically covered without cost-sharing by most insurance plans, including Medicare. However, coverage specifics such as frequency limits and copay requirements can vary by plan. Contact your insurance provider before scheduling to confirm your coverage details. If you are uninsured, ask the facility about self-pay options or community screening programs.
How often should you get a DEXA scan?
There is no single answer that applies to everyone. International practice guidelines establish quality-assured monitoring intervals based on your results and treatment status . Women with normal bone density may not need a repeat scan for several years. Those with osteopenia or osteoporosis, especially those on medication, may benefit from more frequent monitoring. The minimum detectable real change is about 2 to 4% at the spine and 3 to 6% at the hip , so scans scheduled too close together may not show meaningful differences. Your doctor will set a personalized schedule.
What does low bone density mean?
Low bone density, or osteopenia, means your bones are weaker than the normal range for a healthy young adult, but not yet at the osteoporosis threshold. Your T-score falls between -1.0 and -2.5. Osteopenia does not automatically mean you will develop osteoporosis, but it does indicate an increased risk of fractures compared to someone with normal bone density. Your doctor may use the FRAX fracture risk calculator to combine your bone density with other personal factors and estimate your 10-year fracture probability . Depending on your overall risk, lifestyle modifications or medication may be recommended.
What is the difference between a T-score and a Z-score?
A T-score compares your bone density to a healthy 30-year-old adult of the same sex and is the primary score used to diagnose osteoporosis in postmenopausal women and men over 50. A Z-score compares your bone density to someone of your same age, sex, and body size. Z-scores are mainly used for premenopausal women, men under 50, and children. A Z-score of -2.0 or lower suggests that something other than normal aging may be affecting your bones, prompting your doctor to investigate secondary causes such as hormonal conditions, medication effects, or nutritional deficiencies. Both scores are reported in standard deviations from the reference mean.
Can men get a bone density test?
Yes, men can and should get bone density testing when clinically indicated. The USPSTF 2025 guidelines note there is currently insufficient evidence to recommend routine population-level screening for men . However, men aged 70 and older, or men of any age with risk factors such as long-term corticosteroid use, low body weight, prior fractures, excessive alcohol intake, or conditions affecting bone metabolism, should discuss screening with their doctor. Osteoporosis in men is often underdiagnosed, so raising the topic with your healthcare provider is an important first step.
Is a DEXA scan the same as a bone scan?
No, these are two completely different tests. A DEXA scan measures bone mineral density to diagnose osteoporosis and predict fracture risk. A nuclear medicine bone scan uses a radioactive tracer injected into a vein to detect areas of abnormal bone activity, such as cancer that has spread to bone, bone infections, or stress fractures. A bone scan involves an intravenous injection and takes 2 to 4 hours including tracer uptake time, while a DEXA scan is non-invasive and takes 10 to 20 minutes. Make sure you understand which test your doctor has ordered and why, as the two tests answer very different clinical questions.
What happens if my bone density is low?
If your DEXA scan shows osteopenia or osteoporosis, your doctor will assess your overall fracture risk, often using the FRAX calculator, which combines your T-score with other personal risk factors . For milder bone loss, lifestyle strategies such as weight-bearing exercise, adequate calcium and vitamin D intake, and fall prevention may be the first recommendation. For higher fracture risk, bone-strengthening or bone-building medications may be prescribed. Research involving over 80,000 postmenopausal women confirms that multiple effective medication classes exist for osteoporosis identified through DEXA screening .
Can a DEXA scan detect body fat percentage?
Yes. A whole-body DEXA scan can measure body composition, including total body fat percentage, lean muscle mass, and visceral fat (fat around internal organs). This requires a full-body scan lasting 20 to 30 minutes, compared to 10 to 20 minutes for a standard bone density scan. Body composition DEXA scans are increasingly popular in fitness and longevity communities for tracking changes in fat and muscle over time. However, most insurance plans do not cover DEXA scans ordered purely for body composition purposes. The cost for a body-composition-only scan is typically an out-of-pocket expense. Ask your provider whether body composition analysis is available at their facility.
Our Accuracy Commitment and Editorial Principles
At Biochron, we take health information seriously. Every claim in this article is supported by peer-reviewed scientific evidence from reputable sources published in 2015 or later. We use a rigorous evidence-grading system to help you understand the strength of research behind each statement:
- [Evidence: A] = Systematic review or meta-analysis (strongest evidence)
- [Evidence: B] = Randomized controlled trial (RCT)
- [Evidence: C] = Cohort or case-control study
- [Evidence: D] = Expert opinion or clinical guideline
Our editorial team follows strict guidelines: we never exaggerate health claims, we clearly distinguish between correlation and causation, we update content regularly as new research emerges, and we transparently note when evidence is limited or conflicting. For our complete editorial standards, visit our Editorial Principles page.
This article is for informational purposes only and does not constitute medical advice. Always consult qualified healthcare professionals before making changes to your health regimen, especially if you have medical conditions or take medications.
References
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Medical Disclaimer
This content is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of such advice or treatment from a personal physician. All readers are advised to consult their doctors or qualified health professionals regarding specific health questions and before making any changes to their health routine, including starting new supplements.
Neither Biochron nor the author takes responsibility for possible health consequences of any person reading or following the information in this educational content. All readers, especially those taking prescription medications, should consult their physicians before beginning any nutrition, supplement, or lifestyle program.
If you have a medical emergency, call your doctor or emergency services immediately.