Bone marrow culture is an examination of the soft, fatty tissue found inside certain bones. This tissue, called bone marrow, produces blood cells. The test is done to find out what may be causing an infection.

The doctor removes a sample of your bone marrow from the back of your pelvic bone or breast bone. This may be done using bone marrow aspiration or a biopsy.

The removed tissue is sent to a lab, where it is placed into a special container called a culture dish. Everyday, the laboratory specialist will look at the tissue under a microscope to see if any bacteria, fungi, or viruses have grown.

If microorganisms are found, other tests may be done to learn which drugs will kill the organisms. Treatment can then be started based on these results.

You may feel pressure and pain as the marrow is being removed. (You may be given some numbing medicine, called anesthesia, prior to the procedure.)

Soreness at the site usually lasts from a few hours to 1-2 days.