what does a bone scan show
Bone Scan. Guide. A bone scan is a test that can find damage to the bones, find cancer that has spread to the bones, and watch problems such as infection and trauma to the bones.A bone scan can often find a problem days to months earlier than a regular X-ray test.uring a bone scan, a radioactive substance called a tracer is injected into a vein in your arm. The tracer travels through your bloodstream and into your bones. Then a special camera takes pictures of the tracer in your bones. Areas that absorb little or no amount of tracer appear as dark or cold spots.