Bone marrow tests show whether your bone marrow is making enough healthy blood cells. If it's not, the results can tell your doctor which cells are unhealthy and why.
Bone marrow tests are an important medical tool. They're used to diagnose many blood and bone marrow disorders, including anemia and certain kinds of cancer.
Bone marrow tests also are used to find out how severe cancer is and how much it has spread throughout the body. The tests also help doctors find the cause of fevers and infections.
Your doctor will combine information from your bone marrow tests with information from a physical exam, blood tests, and other tests, such as imaging scans and x rays. This information will help your doctor diagnose your condition and plan how to treat it.