Exams and Tests
A diagnosis of
osteoporosis is based on your
medical history, a physical exam, and a test to
measure your bone thickness (density). During a physical exam, your
doctor 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 a picture 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 doctor can estimate the
strength of your bones. See a picture of a
bone mineral density test
.
Routine urine and blood tests can
rule out other
medical conditions, such as
hyperparathyroidism,
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 doctor to monitor your
condition.
Early Detection
If you or your doctor 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
United States Preventive Services Task Force
recommends that all women age 65 and older routinely have a
bone mineral density test to screen for osteoporosis.
If you are at increased risk for fractures caused by osteoporosis, routine
screening should begin at age 60.7
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?
Experts recommend that men older than age 70, or with
other risk factors for osteoporosis, have a
bone mineral density test.8