Why is DEXA scan done?
A DEXA scan is one of the most accurate and reliable ways to assess bone health while gaining detailed insights into fat mass, lean muscle mass, and bone mineral content. But why exactly is a DEXA scan done, and who should consider having one?
Assessing Bone Health and Osteoporosis Risk
One of the primary reasons a DEXA scan is done is to assess bone mineral density. This helps identify conditions such as osteopenia and osteoporosis before a fracture occurs. The scan measures how strong your bones are and compares your results with healthy population averages. This information is especially valuable for postmenopausal women, men over 50, and anyone with risk factors such as family history, or previous fractures.
Early detection allows for timely intervention through lifestyle changes, exercise programmes, nutrition, or medical treatment to help maintain or improve bone strength.
Tracking Body Composition Accurately
Another key reason a DEXA scan is done is to analyse body composition in detail. Unlike bathroom scales or BMI calculations, a DEXA scan shows exactly how much of your body is made up of fat, lean muscle, and bone. It can also highlight fat distribution, including visceral fat around the organs.
This makes DEXA scans popular among athletes, fitness enthusiasts, and individuals focused on weight management or health optimisation. Tracking changes over time helps assess whether training, nutrition, or lifestyle changes are producing meaningful results.
Monitoring Health Conditions and Treatment Progress
DEXA scans are also used to monitor changes in bone density or body composition over time. This is useful for people undergoing osteoporosis treatment, hormone therapy, or recovery from illness or injury. Regular scans provide objective data that can guide healthcare decisions and long-term planning.
Low Radiation and Quick Procedure
A DEXA scan is non-invasive, painless, and uses very low levels of radiation. The scan usually
takes around 10 to 20 minutes, making it a convenient option for detailed health assessment
without significant risk.
Frequently Asked Questions About DEXA Scans in Australia
Do I need a referral for a DEXA scan in Australia?
A referral is required for a DEXA scan. This referral can be from a GP, Nurse, Chiro, Osteo or Physio.
How often should a DEXA scan be done?
Bone density scans are typically repeated every 12 to 24 months. Body composition scans may be done more frequently depending on individual goals.
Is a DEXA scan safe?
Yes. DEXA scans use minimal radiation, much lower than most medical imaging tests
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