Examinations and Tests
A diagnosis of
osteoporosis is based on your
medical history, a physical examination, and a test to
measure your bone thickness (density). During a physical
examination, your health professional will:
- Measure your height and compare the results with past
measurements.
- Examine your body for evidence of previous broken bones, such as
changes in the shape of your long bones and
spine
. See an illustration of a
compression fracture of the spine
.
A
bone mineral density test measures the mineral density
(such as calcium) in your bones using a special X-ray, computed tomography (CT)
scan, or ultrasound. From this information, your health professional can
estimate the strength of your bones. See an illustration of a
bone
mineral density test
.
Routine urine and blood tests can rule out other
medical conditions, such as
hyperthyroidism or
Cushing's syndrome, that can cause bone loss. In men,
blood tests to measure
testosterone levels can see whether low levels are
causing bone loss.
If you have been diagnosed with osteoporosis, you may need to
follow up regularly with your health professional to monitor your
condition.
Early Detection
If you or your health professional thinks you may be at risk for
developing osteoporosis, you may have a screening test to check your bone
thickness. A screening test may be advisable if you have:
- A
fracture in a minor injury that may have been caused
by osteoporosis.
- Another medical condition that is known to cause bone
thinning.
- Risk factors for or symptoms that suggest
osteoporosis.
The Osteoporosis Society of Canada recommends that people 65
years and older have a bone mineral density (BMD) test to screen for
osteoporosis.9 If you are at increased risk for
osteoporotic fractures, screening should begin earlier. Talk with your doctor
about your risk factors and whether you should be tested for osteoporosis
before age 65.
Most experts recommend that the decision to screen women age 60
and younger be made on an individual basis, depending on the risk of developing
osteoporosis and whether the test results will help with treatment decisions.
To help you decide whether you should be tested for osteoporosis, see:
Should I have bone mineral testing to diagnose
osteoporosis?