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Dual energy X-ray absorptiometry (DXA, previously called DEXA) is a way to measure bone mineral density (BMD). DXA shows if you have osteopenia or osteoporosis. Low bone mass is called osteopenia. If osteopenia continues to progress or get worse, you can develop osteoporosis.
Osteoporosis is a disease of bone in which the bone mineral density (BMD) is reduced enough that the bone microarchitecture is disrupted. The amount and variety of proteins in bone is changed.
Anyone with osteopenia or osteoporosis is at increased risk for bone fracture. The risk is greatest if you are over 85 years of age, a smoker, and have a previous history of bone fracture. Postmenopausal women are at increased risk at a younger age but this risk continues to increase with age.
Even if you do not want to take medications at this time, it is always a good idea to get a baseline measurement of bone density. Repeat tests can show you if your bone mass is getting worse. The test can also show how quickly your bone density is changing. As your risk of fracture goes up you may change your mind about the medication. Or you may change your plan if you suffer a fracture and want to prevent further fractures.
You may want to try and use exercise as a means of preventing further bone loss. You can use the DXA measurement to gauge your results. And if you change your mind later, you can always take medications and continue monitoring your bone density.
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